Monsoon Fevers:
Dengue, Typhoid or Just a Virus?
Every July the fevers arrive with the rain. Here is how to read them like a paediatrician: what to watch, what to do at home, and exactly when to stop waiting.
Written & medically reviewed by Dr. Chitrakshi Tewari, MD (Paediatrics) · Published 30 July 2026 · 7-min read
Between July and October, three fevers cause most of the worry in Delhi NCR homes: everyday viral fever (by far the most common), dengue and typhoid. This guide shows you how to tell them apart, what safe home care looks like, the danger signs that mean "see a doctor today", and the prevention steps that genuinely work.
Why the monsoon means fever season
The rain changes three things at once. Stagnant water (in coolers, planters, buckets, terrace corners) becomes a nursery for Aedes mosquitoes, which carry dengue and bite during the day. Water supplies and street food are more easily contaminated, which is how typhoid spreads. And humid weather plus indoor crowding helps ordinary respiratory and stomach viruses hop from child to child. Same season, three very different fevers, and three different responses from you.
The three usual suspects, and how they differ
1. Viral fever: the common one
Fever with a runny nose, cough, sore throat or loose stools; often someone else at home or school is ill too. The child perks up when the temperature dips. It settles in 3–5 days with fluids, rest and paracetamol. No antibiotics; they do nothing here.
2. Dengue: the one to respect
Sudden high fever with severe body ache, headache, pain behind the eyes, sometimes a flushed face or rash, and typically without much cough or cold. The counter-intuitive part: the risky window usually opens around day 3–7, as the fever comes down. That is when fluid can leak out of blood vessels, and when the warning signs below matter most.
3. Typhoid: the one that lingers
A fever that climbs in steps and simply doesn't go away, crossing 5 days, often with tummy pain, headache, poor appetite, and either constipation or loose stools. It comes from contaminated food or water, is confirmed with blood tests, and needs a doctor-prescribed antibiotic, taken as a full course, even after your child feels better.
- Severe tummy pain, repeated vomiting, or refusal of all fluids
- Bleeding from gums or nose, blood in vomit or stool, or unexplained bruises / red spots
- Unusual drowsiness, restlessness or confusion, especially after the fever drops
- Cold hands and feet, very little urine for 6–8 hours, fast or difficult breathing
- Any fever in a baby under 3 months, or any fever lasting more than 5 days
Safe home care, step by step
- Fluids are the treatment: water, ORS, nimbu pani, dal water, coconut water, milk: small sips, offered constantly. A child who is drinking, urinating and alert when the fever dips is a child doing well.
- Paracetamol, dosed by weight: the right dose depends on your child's weight, not age; confirm it once with your doctor and write it down. It is for comfort; the goal is a comfortable child, not a perfect 98.6°F.
- No ibuprofen, aspirin or nimesulide during monsoon fevers: if it turns out to be dengue, these increase bleeding risk. Paracetamol only.
- No antibiotics on your own. They don't touch viral fevers or dengue, and self-started antibiotics can mask typhoid and make the confirming blood culture unreliable.
- Comfort measures: light clothing, a comfortable room, lukewarm sponging if your child likes it, rest, and school stays off until 24 hours fever-free.
When to test, and which tests make sense
Not every fever needs a needle on day one. Sensible timing: if dengue is suspected (high fever + body ache in season), an NS1 antigen test with a CBC works from day 1–2 of fever. If any fever crosses 5 days, your child should be examined and tested: usually a CBC plus typhoid work-up, ideally a blood culture before any antibiotic is started. In dengue, your doctor may repeat the CBC every day or two through the critical phase; it is the trend that matters, not a single platelet number. Your doctor will tailor this; resist the urge to order panels yourself.
Myths vs facts, monsoon edition
Every fever season revives the same WhatsApp wisdom. Tap each card:
No remedy has been shown to raise platelets meaningfully; platelets recover on their own as the illness passes. What actually saves lives in dengue is simple: enough fluids, watching for warning signs, and timely review. Spend your energy there, not on juices.
Most monsoon fevers are viral, and antibiotics do nothing against viruses. They are essential in typhoid, but only after a doctor confirms it, and then the full course matters. Starting antibiotics on your own can also make typhoid harder to diagnose by blood culture.
Usually true for viral fevers, but dengue breaks this rule. Its critical phase often begins just as the temperature normalises, around day 3 to 7. A child who becomes drowsy, vomits repeatedly or complains of severe tummy pain after the fever settles needs a hospital, not relief celebrations.
Children fighting infection need fluids first and food as tolerated: normal, light home food is fine. Forcing food is unnecessary, but restricting a hungry child to one bland dish helps nobody. In diarrhoea, ORS after every loose stool matters more than any specific food.
Prevention that actually works
- Beat the day-biting mosquito: repellent cream or patches for school hours, full sleeves, and a weekly 10-minute hunt for standing water: coolers, plant trays, buckets, tyres. Aedes breeds in clean water, in your own home.
- Water and food discipline: boiled or filtered water everywhere your child drinks, hot freshly-cooked food, extra caution with street food and cut fruit during these months.
- Vaccines: keep the typhoid vaccine current and take the yearly flu vaccine; both are in the IAP schedule. (There is currently no routine dengue vaccine for Indian children; mosquito control is the dengue vaccine.)
- The boring superpowers: handwashing before meals and after school, and keeping an ill child home: protection for your child and everyone else's.
If your child has a fever and you are unsure which kind you are dealing with, I consult online across India: we go through the story, I examine what can be examined on video, guide the right tests at the right time, and stay with you through the recovery. For Ghaziabad families, I also see children in person at Yashoda Hospital, Nehru Nagar (Tue, Thu & Sat, 6–8 PM). And for a deeper guide to childhood infections, read Infectious Diseases in Children, which includes an interactive danger-signs checklist.
Sources & further reading
- World Health Organization, Dengue and severe dengue fact sheet.
- National Center for Vector Borne Diseases Control, Government of India, dengue guidelines and case management.
- World Health Organization, Typhoid fact sheet.
- Indian Academy of Pediatrics, immunization schedule and parent resources.
- American Academy of Pediatrics, fever care at HealthyChildren.org.
This article is educational and does not replace personalised advice from your child's doctor. If your child seems seriously unwell, trust your instinct and seek care; instinct outranks any checklist.
Child running a fever right now?
Talk it through with a paediatrician, online, from anywhere in India.
Monsoon fever questions parents ask
Every child is different. If your question is not answered here, ask it in a consultation, that is exactly what they are for.