Dengue and chikungunya come from a day-biting mosquito, malaria from a night-biting one, and typhoid from contaminated food or water. Dengue brings pain behind the eyes, malaria brings shaking chills, and typhoid brings a fever that climbs a little higher each day. Only a blood test tells them apart reliably.
These are the fevers that fill Indian clinics after the rains, and in the first two days they look almost identical.
They are caused by completely different organisms, spread in completely different ways, and treated completely differently — so guessing wastes the time that matters most.
The table below sets out what actually separates them. It is a guide to understanding, not a way to diagnose yourself.
Side by side
| Dengue / Malaria | Typhoid | |
|---|---|---|
| Cause | Virus (dengue) / parasite (malaria) | Bacteria (Salmonella Typhi) |
| How it spreads | Dengue: Aedes mosquito, bites in daylight. Malaria: Anopheles mosquito, bites at night | Contaminated food and water |
| Fever pattern | Dengue: sudden and continuous. Malaria: comes in waves with shaking chills and sweating | Climbs step by step over the first week, then stays high |
| Standout symptom | Dengue: severe pain behind the eyes and deep body ache. Malaria: rigors and heavy sweating | Marked weakness with stomach discomfort, often constipation |
| Confirming test | Dengue: NS1 antigen, then IgM. Malaria: rapid test or blood smear | Blood culture (Widal alone cannot confirm it) |
| Treatment | Dengue: supportive care only. Malaria: antimalarial medicines | Antibiotics prescribed by a doctor |
| Free in India | Both: testing and malaria treatment free at government facilities | Treatment available at government facilities |
| Main danger | Dengue: severe dengue as the fever falls, day three to seven | Intestinal bleeding or perforation in untreated cases |
When Dengue / Malaria is usually the better choice
- Dengue: watch for severe stomach pain, repeated vomiting, bleeding, drowsiness — especially as the fever comes down
- Malaria: get tested the same day; the rapid test takes about 20 minutes and is free
- Malaria: ask specifically whether you need the extra course that stops vivax malaria relapsing
When Typhoid is usually the better choice
- Ask for a blood culture rather than accepting a Widal result alone
- Complete the entire antibiotic course, even after the fever settles
- Seek urgent care for severe stomach pain or black stools
Important
Until dengue has been ruled out, avoid aspirin and ibuprofen-type painkillers for any undiagnosed fever, because of the bleeding risk. Paracetamol is normally used instead. And do not start antibiotics on your own — they do nothing for dengue or malaria.
This page does not choose for you
Which is right depends on your other conditions, your other medicines and your history. Ask your doctor or pharmacist — and follow what they say over what you read here.