Developmental Milestones at 7 Months

At 7 months, babies reach several developmental milestones. They are able to sit without support, which means they can sit up straight and maintain their balance without falling over. They also start to reach for objects with a sweeping motion, using their arms to grab things that catch their attention. Additionally, they begin to imitate speech sounds, such as babbling and making noises with their mouths.

Half of babies at this age can combine syllables into wordlike sounds, which is an important step towards language development. They may start to say simple words like mama or dada and understand the meaning behind them. Finally, many babies begin to crawl or lunge forward, which is a major milestone in their physical development. Overall, 7 months is an exciting time for babies as they continue to grow and develop new skills.

Pediatric Wheezing: Causes and Characteristics

Pediatric wheezing can be caused by various conditions, each with its own unique characteristics. Unilateral wheeze in a child under three years old is often associated with inhalation of a foreign body, which can partially or completely obstruct the airway. Bronchiolitis, typically caused by respiratory syncytial virus, initially presents as an upper respiratory tract infection and progresses to a lower respiratory tract infection with bilateral wheeze, cough, and difficulty breathing. Pneumonia may also cause wheezing, but is typically accompanied by systemic symptoms such as fever and crepitations on auscultation. Asthma, a common cause of pediatric wheezing, is characterized by bilateral expiratory wheezing due to premature bronchiole collapse. Croup, caused by a parainfluenza virus, presents with a barking cough, stridor, and respiratory distress, and is treated with dexamethasone.

The option to reassure and provide safety netting advice is not appropriate for a child with an acutely irritable hip and fever >38.5ºC, as septic arthritis is a possible diagnosis that requires urgent assessment, including synovial aspiration. Although transient tenosynovitis is the most likely diagnosis, the presence of fever warrants further investigation to rule out septic arthritis. The recommendation of a Pavlik harness and orthopaedic review is not applicable unless developmental dysplasia of the hip is confirmed. Rest and over-the-counter analgesia are not sufficient management for this patient, as urgent referral for same-day assessment is necessary to exclude septic arthritis.

Transient synovitis, also known as irritable hip, is a common cause of hip pain in children aged 3-8 years. It typically occurs following a recent viral infection and presents with symptoms such as groin or hip pain, limping or refusal to weight bear, and occasionally a low-grade fever. However, a high fever may indicate other serious conditions such as septic arthritis, which requires urgent specialist assessment. To exclude such diagnoses, NICE Clinical Knowledge Summaries recommend monitoring children in primary care with a presumptive diagnosis of transient synovitis, provided they are aged 3-9 years, well, afebrile, mobile but limping, and have had symptoms for less than 72 hours. Treatment for transient synovitis involves rest and analgesia, as the condition is self-limiting.

When dealing with suspected or confirmed bacterial meningitis in children under 3 months old, it is not recommended to use corticosteroids. Instead, the most appropriate treatment option would be a combination of IV cefotaxime and IV amoxicillin. IV cefotaxime is effective in covering for pneumococcal and haemophilus influenzae, but since children under 3 months are at risk of listeria monocytogenes as a cause of bacterial meningitis, amoxicillin is necessary to provide adequate coverage. It is important to note that IV dexamethasone is typically given to patients with bacterial meningitis to reduce the risk of neurological complications, but this is not recommended for children under 3 months old.

Investigation and Management of Meningitis in Children

Meningitis is a serious condition that can affect children. When investigating meningitis, it is important to note any contraindications to lumbar puncture, such as signs of raised intracranial pressure, focal neurological signs, papilloedema, significant bulging of the fontanelle, disseminated intravascular coagulation, or signs of cerebral herniation. For patients with meningococcal septicaemia, a lumbar puncture is contraindicated, and blood cultures and PCR for meningococcus should be obtained instead.

The management of meningitis in children involves administering antibiotics, such as IV amoxicillin (or ampicillin) and IV cefotaxime for children under three months, and IV cefotaxime (or ceftriaxone) for children over three months. Steroids should be considered if the lumbar puncture reveals certain findings, such as purulent cerebrospinal fluid, a high white blood cell count, or bacteria on Gram stain. Fluids should be administered to treat shock, and cerebral monitoring should be conducted, including mechanical ventilation if necessary.

It is also important to notify public health authorities and administer antibiotic prophylaxis to contacts. Ciprofloxacin is now preferred over rifampicin for this purpose. Overall, prompt and appropriate management of meningitis in children is crucial for ensuring the best possible outcomes.

The most probable diagnosis for an infant under eight weeks who is experiencing milky vomits after feeds, particularly when laid flat, and excessive crying during feeds is gastro-oesophageal reflux. This is supported by the risk factor of preterm delivery in this case. Coeliac disease is an unlikely diagnosis as the child is exclusively breastfed and would typically present with diarrhoea and failure to thrive when introduced to cereals. Cow’s milk protein intolerance/allergy is also unlikely as it is more commonly seen in formula-fed infants and would typically present with additional symptoms such as atopy and diarrhoea. Duodenal atresia, which causes bilious vomiting in neonates a few hours after birth, is also an unlikely diagnosis for a six-week-old infant experiencing white vomitus.

Understanding Gastro-Oesophageal Reflux in Children

Gastro-oesophageal reflux is a common cause of vomiting in infants, with around 40% of babies experiencing some degree of regurgitation. However, certain risk factors such as preterm delivery and neurological disorders can increase the likelihood of developing this condition. Symptoms typically appear before 8 weeks of age and include vomiting or regurgitation, milky vomits after feeds, and excessive crying during feeding. Diagnosis is usually made based on clinical observation.

Management of gastro-oesophageal reflux in children involves advising parents on proper feeding positions, ensuring the infant is not being overfed, and considering a trial of thickened formula or alginate therapy. Proton pump inhibitors are not recommended unless the child is experiencing unexplained feeding difficulties, distressed behavior, or faltering growth. Ranitidine, previously used as an alternative to PPIs, has been withdrawn from the market due to the discovery of carcinogens in some products. Prokinetic agents should only be used with specialist advice.

Complications of gastro-oesophageal reflux in children include distress, failure to thrive, aspiration, frequent otitis media, and dental erosion in older children. In severe cases where medical treatment is ineffective, fundoplication may be considered. It is important for parents and caregivers to understand the symptoms and management options for gastro-oesophageal reflux in children to ensure the best possible outcomes for their little ones.

Common Skin Rashes and Infections: Symptoms and Characteristics

Parvovirus Infection: Also known as ‘slapped cheek syndrome’, this mild infection is characterized by a striking appearance. However, it can lead to serious complications in immunocompromised patients or those with sickle-cell anaemia or thalassaemia.

Pityriasis Rosea: This rash starts with an oval patch of scaly skin and is followed by small, scaly patches that spread across the body.

Impetigo: A superficial infection caused by Staphylococcus or Streptococcus bacteria, impetigo results in fluid-filled blisters or sores that burst and leave a yellow crust.

Scarlet Fever: This rash is blotchy and rough to the touch, typically starting on the chest or abdomen. Patients may also experience headache, sore throat, and high temperature.

Urticaria: This itchy, raised rash is caused by histamine release due to an allergic reaction, infection, medications, or temperature changes. It usually settles within a few days.

Transient synovitis, also known as irritable hip, is a common cause of hip pain in children aged 3-8 years. It typically occurs following a recent viral infection and presents with symptoms such as groin or hip pain, limping or refusal to weight bear, and occasionally a low-grade fever. However, a high fever may indicate other serious conditions such as septic arthritis, which requires urgent specialist assessment. To exclude such diagnoses, NICE Clinical Knowledge Summaries recommend monitoring children in primary care with a presumptive diagnosis of transient synovitis, provided they are aged 3-9 years, well, afebrile, mobile but limping, and have had symptoms for less than 72 hours. Treatment for transient synovitis involves rest and analgesia, as the condition is self-limiting.

The likely diagnosis for an infant presenting with bilious vomiting and signs of obstruction is intestinal malrotation. This condition occurs when the bowel fails to loop efficiently during development, leading to an increased risk of volvulus and obstruction. The green color of the vomit is caused by conditions that cause intestinal obstruction distal to the ampulla of Vater. Biliary atresia, intussusception, and oesophageal atresia are other pediatric conditions that may cause vomiting, but they present with different symptoms and are not associated with bilious vomiting and obstruction.

Paediatric Gastrointestinal Disorders

Pyloric stenosis is more common in males and has a 5-10% chance of being inherited from parents. Symptoms include projectile vomiting at 4-6 weeks of life, and diagnosis is made through a test feed or ultrasound. Treatment involves a Ramstedt pyloromyotomy, either open or laparoscopic.

Acute appendicitis is uncommon in children under 3 years old, but when it does occur, it may present atypically. Mesenteric adenitis causes central abdominal pain and URTI, and is treated conservatively.

Intussusception occurs in infants aged 6-9 months and causes colicky pain, diarrhea, vomiting, a sausage-shaped mass, and red jelly stool. Treatment involves reduction with air insufflation.

Intestinal malrotation is characterized by a high caecum at the midline and may be complicated by the development of volvulus. Diagnosis is made through an upper GI contrast study and ultrasound, and treatment involves laparotomy or a Ladd’s procedure.

Hirschsprung’s disease occurs in 1/5000 births and is characterized by delayed passage of meconium and abdominal distension. Treatment involves rectal washouts and an anorectal pull through procedure.

Oesophageal atresia is associated with tracheo-oesophageal fistula and polyhydramnios, and may present with choking and cyanotic spells following aspiration. Meconium ileus is usually associated with cystic fibrosis and requires surgery to remove plugs. Biliary atresia causes jaundice and increased conjugated bilirubin, and requires an urgent Kasai procedure. Necrotising enterocolitis is more common in premature infants and is treated with total gut rest and TPN, with laparotomy required for perforations.

Recurrent Chest Infections and Bronchiectasis: A Possible Sign of Cystic Fibrosis

Patients who have a history of recurrent chest infections and x-ray appearances that suggest bronchiectasis may be showing signs of cystic fibrosis. Bronchiectasis is a condition where the airways in the lungs become damaged and widened, leading to a build-up of mucous and bacteria. This can cause recurrent chest infections, which can be difficult to treat. Cystic fibrosis is a genetic condition that affects the production of mucous, leading to thick and sticky secretions that can block the airways and cause infections.

If a patient is showing signs of bronchiectasis, it is important to consider cystic fibrosis as a possible cause. Early diagnosis and treatment of cystic fibrosis can help to manage symptoms and prevent complications. Testing for cystic fibrosis may involve a sweat test, genetic testing, or other diagnostic tests. Treatment may include medications to help clear mucous from the airways, antibiotics to treat infections, and other therapies to manage symptoms.

Socioeconomic deprivation, maternal alcohol/tobacco use, and maternal age under 20 are all associated with gastroschisis.

While gastroschisis and omphalocele have similar presentations, gastroschisis refers to a defect located to the side of the umbilicus, while omphalocele refers to a defect in the umbilicus itself.

Foetal alcohol syndrome is characterized by a small head, flattened philtrum, and thin upper lip.

Anencephaly is a neural tube defect that results in the absence of the brain, skull, and scalp.

Gastroschisis and exomphalos are both types of congenital visceral malformations. Gastroschisis refers to a defect in the anterior abdominal wall located just beside the umbilical cord. In contrast, exomphalos, also known as omphalocoele, involves the protrusion of abdominal contents through the anterior abdominal wall, which are covered by an amniotic sac formed by amniotic membrane and peritoneum.

When it comes to managing gastroschisis, vaginal delivery may be attempted, but newborns should be taken to the operating theatre as soon as possible after delivery, ideally within four hours. As for exomphalos, a caesarean section is recommended to reduce the risk of sac rupture. In cases where primary closure is difficult due to lack of space or high intra-abdominal pressure, a staged repair may be undertaken. This involves allowing the sac to granulate and epithelialise over several weeks or months, forming a shell. As the infant grows, the sac contents will eventually fit within the abdominal cavity, at which point the shell can be removed and the abdomen closed.

Overall, both gastroschisis and exomphalos require careful management to ensure the best possible outcome for the newborn. By understanding the differences between these two conditions and the appropriate steps to take, healthcare professionals can provide effective care and support to both the infant and their family.

Understanding Croup: A Respiratory Infection in Infants and Toddlers

Croup is a type of upper respiratory tract infection that commonly affects infants and toddlers. It is characterized by a barking cough, fever, and coryzal symptoms, and is caused by a combination of laryngeal oedema and secretions. Parainfluenza viruses are the most common cause of croup. The condition typically peaks between 6 months and 3 years of age, and is more prevalent during the autumn season.

The severity of croup can be graded based on the presence of symptoms such as stridor, cough, and respiratory distress. Mild cases may only have occasional barking cough and no audible stridor at rest, while severe cases may have frequent barking cough, prominent inspiratory stridor at rest, and marked sternal wall retractions. Children with moderate or severe croup, those under 6 months of age, or those with known upper airway abnormalities should be admitted to the hospital.

Diagnosis of croup is usually made based on clinical presentation, but a chest x-ray may show subglottic narrowing, commonly referred to as the steeple sign. Treatment for croup typically involves a single dose of oral dexamethasone or prednisolone, regardless of severity. In emergency situations, high-flow oxygen and nebulized adrenaline may be necessary.

Understanding croup is important for parents and healthcare providers alike, as prompt recognition and treatment can help prevent complications and improve outcomes for affected children.

Common Congenital Heart Defects and Acquired Valvular Defects

Congenital heart defects are present at birth and can affect the structure and function of the heart. Tetralogy of Fallot is a common congenital heart defect that includes right ventricular hypertrophy, ventricular septal defect, right-sided outflow tract obstruction, and overriding aorta. On the other hand, patent ductus arteriosus (PDA) and atrial septal defect (ASD) are not part of the tetralogy of Fallot but are commonly occurring congenital heart defects.

PDA is characterized by a persistent communication between the descending thoracic aorta and the pulmonary artery, while ASD is characterized by a defect in the interatrial septum, allowing shunting of blood from left to right. If left untreated, patients with a large PDA are at risk of developing Eisenmenger syndrome in later life.

Acquired valvular defects, on the other hand, are not present at birth but develop over time. Aortic stenosis is an acquired valvular defect that results from progressive narrowing of the aortic valve area over several years. Tricuspid stenosis, which is caused by obstruction of the tricuspid valve, can be a result of several conditions, including rheumatic heart disease, congenital abnormalities, active infective endocarditis, and carcinoid tumors.

Childhood leukaemia is the most prevalent cancer in children, without significant familial correlation. However, certain genetic disorders, such as Down’s syndrome, can increase the risk of developing this disease.

Acute lymphoblastic leukaemia (ALL) is a type of cancer that commonly affects children and accounts for 80% of childhood leukaemias. It is most prevalent in children between the ages of 2-5 years, with boys being slightly more affected than girls. Symptoms of ALL can be divided into those caused by bone marrow failure, such as anaemia, neutropaenia, and thrombocytopenia, and other features like bone pain, splenomegaly, and hepatomegaly. Fever is also present in up to 50% of new cases, which may indicate an infection or a constitutional symptom. Testicular swelling may also occur.

There are three types of ALL: common ALL, T-cell ALL, and B-cell ALL. Common ALL is the most common type, accounting for 75% of cases, and is characterized by the presence of CD10 and a pre-B phenotype. Poor prognostic factors for ALL include age less than 2 years or greater than 10 years, a white blood cell count greater than 20 * 109/l at diagnosis, T or B cell surface markers, non-Caucasian ethnicity, and male sex.

Pulmonary hypoplasia in CDH is not a direct result of hernial development but rather occurs alongside it as part of a sequence. It is caused by oligohydramnios, which reduces the size of the intrathoracic cavity and prevents foetal lung growth. Other less common causes of pulmonary hypoplasia include diaphragm agenesis, tetralogy of Fallot, and osteogenesis imperfecta.

Understanding Pulmonary Hypoplasia in Newborns

Pulmonary hypoplasia is a condition that affects newborn infants, where their lungs are underdeveloped. This means that the lungs are smaller than they should be, and they may not function properly. There are several causes of pulmonary hypoplasia, including oligohydramnios and congenital diaphragmatic hernia.

Oligohydramnios is a condition where there is a low level of amniotic fluid in the womb. This can happen for a variety of reasons, such as a problem with the placenta or a leak in the amniotic sac. When there is not enough amniotic fluid, the baby may not have enough room to move around and develop properly. This can lead to pulmonary hypoplasia, as the lungs do not have enough space to grow.

Congenital diaphragmatic hernia is a condition where there is a hole in the diaphragm, which is the muscle that separates the chest cavity from the abdominal cavity. This can allow the organs in the abdomen to move up into the chest cavity, which can put pressure on the lungs and prevent them from developing properly. This can also lead to pulmonary hypoplasia.

In summary, pulmonary hypoplasia is a condition where newborn infants have underdeveloped lungs. It can be caused by a variety of factors, including oligohydramnios and congenital diaphragmatic hernia. It is important to diagnose and treat this condition as soon as possible, as it can lead to serious health problems for the baby.

Perthes disease is a condition that primarily affects one hip, with only a minority of patients experiencing it in both hips. It is not associated with obesity, unlike slipped capital femoral epiphysis which is more common in overweight children. The management of Perthes disease typically involves conservative measures such as casting or bracing, although surgery may be necessary for older children or those with significant damage to the hip socket. The use of a Pavlik harness is not appropriate for treating Perthes disease, as it is typically used for developmental dysplasia of the hip.

Understanding Perthes’ Disease

Perthes’ disease is a degenerative condition that affects the hip joints of children, typically between the ages of 4-8 years. It is caused by a lack of blood supply to the femoral head, which leads to bone infarction and avascular necrosis. This condition is more common in boys, with around 10% of cases being bilateral. The symptoms of Perthes’ disease include hip pain, stiffness, reduced range of hip movement, and a limp. Early changes can be seen on an x-ray, such as widening of the joint space, while later changes include decreased femoral head size and flattening.

To diagnose Perthes’ disease, a plain x-ray is usually sufficient. However, if symptoms persist and the x-ray is normal, a technetium bone scan or magnetic resonance imaging may be necessary. If left untreated, Perthes’ disease can lead to complications such as osteoarthritis and premature fusion of the growth plates.

The severity of Perthes’ disease is classified using the Catterall staging system, which ranges from stage 1 (clinical and histological features only) to stage 4 (loss of acetabular integrity). Treatment options include keeping the femoral head within the acetabulum using a cast or braces, observation for children under 6 years old, and surgical management for older children with severe deformities. The prognosis for Perthes’ disease is generally good, with most cases resolving with conservative management. Early diagnosis is key to improving outcomes.

For a child with croup, the first step is to determine the severity of the illness. Mild croup is characterized by occasional barking cough without stridor at rest, no or mild recessions, and a well-looking child. Moderate croup involves frequent barking cough and stridor at rest, recessions at rest, and no distress. Severe croup is marked by prominent inspiratory stridor at rest, marked recessions, distress, agitation or lethargy, and tachycardia. In this case, the child has mild croup and does not require hospital admission. Nebulized adrenaline and a salbutamol inhaler are not necessary as the child is not distressed and does not have wheeze. Antibiotics are not effective for croup as it is a viral illness. However, a single dose of oral dexamethasone (0.15 mg/kg) can be taken immediately to ease symptoms and reduce the likelihood of reattendance or hospital admission.

Understanding Croup: A Respiratory Infection in Infants and Toddlers

Croup is a type of upper respiratory tract infection that commonly affects infants and toddlers. It is characterized by a barking cough, fever, and coryzal symptoms, and is caused by a combination of laryngeal oedema and secretions. Parainfluenza viruses are the most common cause of croup. The condition typically peaks between 6 months and 3 years of age, and is more prevalent during the autumn season.

The severity of croup can be graded based on the presence of symptoms such as stridor, cough, and respiratory distress. Mild cases may only have occasional barking cough and no audible stridor at rest, while severe cases may have frequent barking cough, prominent inspiratory stridor at rest, and marked sternal wall retractions. Children with moderate or severe croup, those under 6 months of age, or those with known upper airway abnormalities should be admitted to the hospital.

Diagnosis of croup is usually made based on clinical presentation, but a chest x-ray may show subglottic narrowing, commonly referred to as the steeple sign. Treatment for croup typically involves a single dose of oral dexamethasone or prednisolone, regardless of severity. In emergency situations, high-flow oxygen and nebulized adrenaline may be necessary.

Understanding croup is important for parents and healthcare providers alike, as prompt recognition and treatment can help prevent complications and improve outcomes for affected children.

Understanding and Managing Constipation in Children

Constipation is a common problem in children, with the frequency of bowel movements decreasing as they age. The National Institute for Health and Care Excellence (NICE) has provided guidelines for the diagnosis and management of constipation in children. A diagnosis of constipation is suggested by two or more symptoms, including infrequent bowel movements, hard stools, and associated distress or pain. Most cases of constipation in children are idiopathic, but other causes such as dehydration, low-fiber diet, and medication use should be considered and excluded.

If a diagnosis of constipation is made, NICE recommends assessing for faecal impaction before starting treatment. Treatment for faecal impaction involves using polyethylene glycol 3350 + electrolytes (Movicol Paediatric Plain) as the first-line treatment, with the addition of a stimulant laxative if necessary. Maintenance therapy involves a similar regime, with adjustments to the starting dose and the addition of other laxatives if necessary.

It is important to note that dietary interventions alone are not recommended as first-line treatment, although ensuring adequate fluid and fiber intake is important. Regular toileting and non-punitive behavioral interventions should also be considered. For infants, extra water, gentle abdominal massage, and bicycling the legs can be helpful for constipation. If these measures are not effective, lactulose can be added.

In summary, constipation in children can be managed effectively with a combination of medication, dietary adjustments, and behavioral interventions. It is important to follow NICE guidelines and consider the individual needs of each child.

Varicella zoster virus causes chickenpox, a highly contagious disease that commonly affects children. The onset of the disease is marked by a prodrome of elevated temperature, followed by the appearance of clusters of red blisters on the face and torso. Children remain infectious until all the blisters have scabbed over, and should stay away from school or nursery until this point. Treatment involves supportive measures such as calamine lotion to relieve itching and paracetamol to control fever. Immunodeficient children may require acyclovir to prevent complications such as pneumonia and meningitis. Scabies, which mainly affects the fingers’ web spaces, is treated with permethrin. Flucloxacillin is recommended for bacterial infections that occur on top of chickenpox. It is advisable to avoid ibuprofen in chickenpox, as there is a link between the use of NSAIDs and the development of necrotising fasciitis.

Chickenpox: Causes, Symptoms, and Management

Chickenpox is a viral infection caused by the varicella zoster virus. It is highly contagious and can be spread through respiratory droplets. The virus can also reactivate later in life, causing shingles. Chickenpox is most infectious four days before the rash appears and until five days after the rash first appears. The incubation period is typically 10-21 days. Symptoms include fever, an itchy rash that starts on the head and trunk before spreading, and mild systemic upset.

Management of chickenpox is supportive and includes keeping cool, trimming nails, and using calamine lotion. School exclusion is recommended during the infectious period. Immunocompromised patients and newborns with peripartum exposure should receive varicella zoster immunoglobulin (VZIG). If chickenpox develops, IV acyclovir may be considered. Secondary bacterial infection of the lesions is a common complication, which may be increased by the use of NSAIDs. In rare cases, invasive group A streptococcal soft tissue infections may occur, resulting in necrotizing fasciitis. Other rare complications include pneumonia, encephalitis, disseminated haemorrhagic chickenpox, arthritis, nephritis, and pancreatitis.

Radiographic Findings in Varicella Pneumonia

Varicella pneumonia is a rare complication of chickenpox that can occur in immunocompromised patients or adults. Radiographic findings of healed varicella pneumonia may include miliary opacities throughout both lungs, which are of uniform size and dense, suggesting calcification. There is typically no focal lung parenchymal mass or cavitating lesion seen. These findings are characteristic of healed varicella pneumonia.

Understanding Infantile Colic

Infantile colic is a common condition that affects infants under three months old. It is characterized by excessive crying and pulling up of the legs, which is often worse in the evening. This condition affects up to 20% of infants, and its cause is unknown.

Despite its prevalence, there is no known cure for infantile colic. However, there are some remedies that parents can try to alleviate the symptoms. NICE Clinical Knowledge Summaries advise against the use of simethicone or lactase drops, such as Infacol® and Colief®, respectively. These remedies have not been proven to be effective in treating infantile colic.

Parents can try other methods to soothe their baby, such as holding them close, rocking them gently, or using a pacifier. Some parents also find that white noise or music can help calm their baby. It is important to remember that infantile colic is a temporary condition that usually resolves on its own by the time the baby is three to four months old.

The BCG vaccine for TB should be provided to infants who have a family history of TB or come from regions/countries with a high risk of TB (as defined by WHO as having more than 40 cases per 100,000). This recommendation applies to babies up to one year old.

Immunisation is the process of administering vaccines to protect individuals from infectious diseases. The Department of Health has provided guidance on the safe administration of vaccines in its publication ‘Immunisation against infectious disease’ in 2006. The guidance outlines general contraindications to immunisation, such as confirmed anaphylactic reactions to previous doses of a vaccine containing the same antigens or another component contained in the relevant vaccine. Vaccines should also be delayed in cases of febrile illness or intercurrent infection. Live vaccines should not be administered to pregnant women or individuals with immunosuppression.

Specific vaccines may have their own contraindications, such as deferring DTP vaccination in children with an evolving or unstable neurological condition. However, there are no contraindications to immunisation for individuals with asthma or eczema, a history of seizures (unless associated with fever), or a family history of autism. Additionally, previous natural infections with pertussis, measles, mumps, or rubella do not preclude immunisation. Other factors such as neurological conditions like Down’s or cerebral palsy, low birth weight or prematurity, and patients on replacement steroids (e.g. CAH) also do not contraindicate immunisation.