Between August and November, paediatric wards across Rajasthan see a steady rise in children with high fever, body pain and falling platelet counts. Cases of dengue in children in Jaipur follow this seasonal pattern every year, driven by water collecting in coolers, overhead tanks and discarded containers after the monsoon. Most children recover with supportive care at home. The concern is a smaller group who develop plasma leakage and shock, often on the day the fever comes down. Understanding how dengue behaves helps parents to recognise danger early.

What Is Dengue and How Does It Affect a Child's Body?

Dengue is an acute viral infection caused by the dengue virus, a flavivirus with four serotypes (DENV-1 to DENV-4). It spreads through the bite of an infected female Aedes aegypti or Aedes albopictus mosquito. Symptoms usually appear 4 to 10 days after the bite.

The illness runs in three phases:

●    Febrile phase (days 1 to 3 or more): High fever, body ache and headache.
●    Critical phase (usually days 3 to 7): Begins around defervescence, when fever drops. Capillaries become leaky, allowing plasma to escape into body spaces such as the abdomen and around the lungs. These changes can reduce circulating blood volume and lead to shock.
●    Recovery phase: Leaked fluid is reabsorbed over 48 to 72 hours. Appetite and energy return, though fluid overload is a risk if IV fluids continue unnecessarily.

The WHO classifies dengue as dengue without warning signs, dengue with warning signs and severe dengue. This classification guides whether a child can be managed at home or needs admission.

Why Do Some Children Develop Severe Dengue?

Infection with one serotype gives lifelong immunity to that type only. A second infection with a different serotype can trigger a phenomenon called antibody-dependent enhancement, where existing antibodies help the new virus multiply, increasing the risk of severe disease.
Children at higher risk include:
●    Infants, particularly those under one year
●    Children with a previous dengue infection
●    Children with obesity, asthma, diabetes, heart disease, kidney disease or blood disorders
●    Those in areas with high transmission and multiple circulating serotypes

What Are the Symptoms of Dengue in Children?

Infants and toddlers often present with non-specific signs such as fever, irritability, poor feeding and vomiting, which can be mistaken for any viral illness. Older children more often report the classic features: sudden high fever, severe headache, pain behind the eyes, muscle and joint pain, nausea and a flushed or blotchy rash. Small pinpoint red spots called petechiae may appear on the skin.

Dengue Warning Signs in Children

The WHO-defined dengue warning signs in children indicate progression towards the critical phase:

●    Abdominal pain or tenderness
●    Persistent vomiting
●    Clinical fluid accumulation, such as a swollen abdomen or breathing difficulty
●    Mucosal bleeding from gums or nose, or blood in vomit or stools
●    Lethargy or restlessness
●    Liver enlargement of more than 2 cm
●    A rising haematocrit alongside a rapid fall in platelet count
Cold extremities, delayed capillary refill, reduced urine output and a narrowing pulse pressure point towards early shock.

Which Tests Confirm Dengue in Children?

Diagnosis combines clinical assessment with laboratory tests chosen according to the day of illness:
●    NS1 antigen: Detects a viral protein, most reliable in the first five days of fever.
●    Dengue IgM antibody: Usually becomes positive after day five.
●    IgG antibody: A high level early in illness can suggest secondary infection.
●    Complete blood count: Tracks platelets and white cells, which typically fall.
●    Haematocrit (PCV): A rise of about 20 percent from baseline suggests significant plasma leakage.
●    Liver function tests, electrolytes and ultrasound: Used when complications are suspected. Ultrasound can detect fluid in the abdomen or around the lungs.
Doctors often repeat blood counts every 12 to 24 hours during the critical phase.

How Is Dengue Treated in Children?

No approved antiviral treatment exists for dengue. Management is supportive and aims to maintain adequate circulation through the critical phase.

For children without warning signs, home care usually includes oral rehydration solution, fruit juices, soups and water, rest, and paracetamol for fever in a weight-based dose prescribed by the doctor. NSAIDs such as ibuprofen, aspirin and diclofenac must be avoided as they impair platelet function and increase bleeding risk. Intramuscular injections are also avoided.
Children with warning signs or severe dengue need hospital care. Treatment involves carefully titrated isotonic IV fluids, hourly monitoring of vital signs and urine output in severe cases, and serial haematocrit checks. Fluids are reduced as the child stabilises to prevent overload during the reabsorption phase. Prophylactic platelet transfusion is not recommended by guidelines and is generally reserved for significant bleeding.

When Should a Child with Dengue Be Hospitalised?

Admission is generally advised if a child has any warning sign, is unable to drink adequately, is passing little urine, has a rising haematocrit with falling platelets, or shows signs of shock. Infants, children with chronic illness and families living far from medical care may also be admitted for observation. Some children need care in a paediatric intensive care unit for fluid management and monitoring.

How Do I Know If My Child's Dengue Is Serious?

Watch your child's behaviour and hydration, especially in the 24 to 48 hours after the fever settles. A child who drinks well, passes urine every 4 to 6 hours and shows some interest in play is usually stable. Lethargy, abdominal pain, repeated vomiting, cold hands and feet or no urine for several hours signal that urgent medical review is needed, even when the child no longer has a fever.

When Should Parents See a Doctor?

Consult a paediatrician for any fever lasting more than 48 hours during dengue season, or earlier if the child is an infant. Go to emergency immediately for bleeding, breathing difficulty, fainting, extreme drowsiness or absent urine output.

Parents searching for the best pediatrician for dengue treatment in Jaipur should look for a team with access to round-the-clock laboratory monitoring, emergency services and paediatric intensive care.

How Can Dengue Be Prevented and What Does Recovery Look Like?

Since Aedes mosquitoes breed in clean stagnant water and bite during daylight, prevention focuses on the home environment. Empty and scrub coolers, buckets, plant saucers and pet bowls weekly. Dress children in long sleeves and trousers, use age-appropriate repellents, fit window mesh and use bed nets during daytime naps.

After recovery, fatigue and low appetite may last one to two weeks. Some children develop an itchy convalescent rash on the palms and soles, which usually settles without treatment.

Conclusion

Dengue is usually manageable when parents understand its phases and know which signs call for urgent care. The drop in fever should prompt closer attention, not relief. If you have concerns about dengue in children in Jaipur, have your child assessed early by a qualified paediatrician who can closely monitor blood counts and hydration. Maternite Hospitals provides pediatric illness care with a dedicated PICU for children who need intensive monitoring.