← All posts
snakebiteneglected diseasesdata

How Many People Die From Snakebites Every Year

Snakebites kill between 81,000 and 138,000 people a year, about half of them in India. Where it happens, which snakes, and why antivenom is so scarce.

|12 min read
Share

Picture a rice field in rural India at dusk, just after the monsoon rains. A farmer is wading through ankle-deep water, bringing in the last bundle of the day, when something brushes his foot. It feels like a thorn. He barely notices. An hour later his gums start to bleed, and by the time his family finds a vehicle and a road to the district hospital, it is past midnight.

If that hospital has antivenom in the fridge, and a doctor who knows how to use it, he will probably go home within a week. If it does not, or if the family first takes him to a traditional healer, as many still do, his chances fall sharply. Most snakebite deaths happen not in the jungle but on the journey, or at home, hours from help.

That is the quiet reality behind one of the most neglected causes of death on earth.

The headline number

The World Health Organization estimates that snakes bite around 4.5 to 5.4 million people a year. Of those, 1.8 to 2.7 million are envenomed, meaning venom actually enters the body, and between 81,000 and 138,000 people die. Roughly three times as many survive with amputations or permanent disability.

Taking a midpoint of about 100,000 deaths a year, that is roughly 275 snakebite deaths every day. They are a small but very real part of the global total that ticks past on our live death counter.

Time periodSnakebite deaths (approx., midpoint)
Per minute0.19
Per hour11
Per day275
Per week1,900
Per month8,300
Per year100,000 (range 81,000 to 138,000)

To put that in context, snakebite kills more people every year than any other animal except mosquitoes and humans themselves. We rank them all in the deadliest animals in the world.

Why the numbers are so uncertain

The wide range is not carelessness. It reflects how hard snakebite deaths are to count.

ReasonEffect on the data
Most victims are in remote rural areasMany never reach a hospital, so deaths are never recorded
Many go to traditional healers firstDeaths happen outside the health system
Death certificates are rare in many countriesCause of death is often unknown or guessed
Snakebite is not a notifiable disease in many placesNo legal duty to report it
Household surveys capture far more deaths than hospitalsOfficial statistics badly undercount

India is the clearest example. Hospital records there once suggested around 1,000 to 2,000 snakebite deaths a year. Then the Million Death Study, which interviewed families about how relatives had died, found the true toll was far higher. A 2020 analysis of that study estimated around 58,000 snakebite deaths a year in India between 2000 and 2019, and about 1.2 million deaths over those two decades.

Where snakebite kills

Snakebite is a disease of poverty and of farming. It is concentrated in the rural tropics of South Asia, sub-Saharan Africa and parts of Southeast Asia and Latin America.

Country or regionEstimated annual deathsNotes
India~58,000Close to half of the world's total
Rest of South AsiaThousandsPakistan, Bangladesh, Nepal, Sri Lanka
Sub-Saharan Africa~20,000 to 32,000Many deaths go unrecorded; antivenom often unavailable
Southeast AsiaThousandsMyanmar has one of the highest rates
Latin AmericaLow thousandsBetter antivenom access, fewer deaths per bite
Australia~2 to 3Highly venomous snakes, but fast, excellent care
United States~5Around 7,000 to 8,000 venomous bites a year

The contrast with Australia is striking. Australia is home to many of the most venomous snakes in the world, including the inland taipan and the eastern brown snake. Yet only a handful of people die from snakebite there in a typical year, thanks to pressure bandaging, ambulances and widely stocked antivenom. The venom matters, but access to treatment matters much more.

Who gets bitten, and by what

Most snakebite victims are not hikers or snake handlers. They are farmers, herders, labourers and children, bitten while doing ordinary things: working in fields, walking at night, sleeping on the floor.

GroupWhy they are at higher risk
Agricultural workersHands and feet in grass, crops and water at dawn and dusk
ChildrenSmaller bodies get a higher dose of venom relative to weight
People who sleep on the floorKraits hunt at night and bite sleeping people
Rural womenCollecting water and firewood, often far from care
Young working-age menMost exposed through outdoor labour

In India, four species cause most serious bites, often called the "big four": Russell's viper, the saw-scaled viper, the common krait and the spectacled cobra. In Africa, carpet vipers, puff adders, cobras and mambas account for most deaths.

Venom typeTypical snakesWhat it does
HaemotoxicVipers (Russell's viper, saw-scaled viper, puff adder)Stops blood clotting, causing bleeding; damages kidneys
NeurotoxicKraits, cobras, mambas, taipansParalyses muscles, including those used for breathing
CytotoxicMany vipers and spitting cobrasDestroys tissue around the bite, can lead to amputation

Krait bites are especially dangerous because they often happen at night, are nearly painless, and may not be noticed until paralysis begins. By morning it can be too late.

The antivenom problem

Antivenom has existed for more than a century. It works. So why do so many people still die?

BarrierWhat it means
CostA full course can cost more than a farming family earns in months
SupplySome manufacturers stopped making African antivenoms because they were unprofitable
QualitySome products on the market have been poorly matched to local snakes
StorageMany antivenoms need refrigeration, which rural clinics may lack
DistanceThe nearest stocked hospital may be hours away
TrainingHealth workers may not know how to give it safely or manage reactions

In 2017, WHO added snakebite envenoming to its list of neglected tropical diseases, a move pushed by doctors and researchers who had watched people die for want of a cheap, existing treatment. Two years later, WHO launched a strategy aiming to halve snakebite deaths and disabilities by 2030. Progress has been real but uneven, and that target remains a long way off.

Researchers are also working on new approaches, including synthetic antibodies and small-molecule drugs such as varespladib that could be given as tablets soon after a bite, buying time on the road to hospital. None has yet replaced traditional antivenom, but they could transform rural care if they prove effective.

Snakebite compared with other causes

Snakebite will never rank among the leading causes of death worldwide. But in the communities it hits, it is often more feared than diseases that kill far more people.

CauseApprox. deaths per year
Malaria~597,000
Rabies~59,000
Snakebite~81,000 to 138,000
Drowning~300,000
Road injuries~1,190,000

Many of those who die from snakebite are working-age adults or children, so each death costs many years of life. In India, the Million Death Study found that the risk was highest in rural areas during the monsoon months of June to September, when both farming activity and snake activity peak.

What actually helps

The basics of good snakebite care are simple, and many traditional remedies do more harm than good.

DoDo not
Keep calm and keep the bitten limb stillCut the wound or try to suck out venom
Remove rings, watches and tight clothingApply a tight tourniquet
Get to a hospital with antivenom as fast as possibleWaste time with traditional remedies
Note the time of the bite and, if safe, what the snake looked likeTry to catch or kill the snake
Lie the person on their side if they vomitGive alcohol or painkillers that thin the blood

Prevention matters just as much. Wearing boots in fields, using a torch at night, sleeping under a tucked-in bed net (which also protects against malaria), and keeping homes clear of rubbish and rodents that attract snakes all cut the risk substantially.

The survivors: disability and poverty

Death is only part of the story. For every person killed by a snake, roughly three more survive with lasting damage, and those injuries often fall on the people least able to absorb them.

Long-term effectWhy it happens
AmputationCytotoxic venom destroys tissue in the hand, foot or limb
Kidney failureSome viper venoms damage the kidneys, sometimes needing lifelong dialysis
BlindnessSpitting cobras can spray venom into the eyes
Chronic pain and stiffnessDamaged muscles and tendons heal badly without rehabilitation
Psychological traumaFear, anxiety and post-traumatic stress are common after severe bites

A farmer who loses a hand or a foot may never work the same land again. A family that sells livestock or borrows money to pay for antivenom and hospital care can be pushed into debt for years. Researchers who study snakebite describe it as a disease that both feeds on poverty and creates more of it, which is one reason it has been compared with malaria and other diseases of the rural poor.

Children are a particular concern. Because they are small, the same dose of venom has a much stronger effect on them, and a bite that an adult might survive with treatment can be fatal for a child. Children who survive can be left with disabilities that shape the rest of their lives, from missed schooling to limited work later on.

The bigger picture

Snakebite sits in the same family as many other deaths we cover on this site: hunger, unsafe water, diarrhoeal disease and preventable childhood infections. They mostly affect the rural poor. They rarely make the news. And the tools to prevent them already exist.

If you want to see where your own risks lie, try our risk calculator. For most people reading this, a snake will not be on the list. For a rice farmer in Uttar Pradesh or a herder in northern Nigeria, it very much is.

While you were reading

This article takes about 12 minutes to read. In that time, roughly two people died from snakebite somewhere in the world, most likely in rural India or sub-Saharan Africa, many of them hours from the antivenom that could have saved them.

Over the same 12 minutes, about 1,400 people died from all causes worldwide. You can watch the total rise in real time on our live death counter.


Sources: World Health Organization snakebite envenoming fact sheet and 2019 snakebite strategy; Suraweera et al., eLife (2020), "Trends in snakebite deaths in India from 2000 to 2019 in a nationally representative mortality study" (Million Death Study); Global Burden of Disease estimates (IHME); WHO rabies fact sheet; national health data for Australia and the United States. Figures are rounded estimates with wide uncertainty ranges because most snakebite deaths are never formally recorded.

Disclaimer: This article is for general information only and is not medical advice. If you or someone near you is bitten by a snake, treat it as an emergency and seek medical help immediately.

Share

You might also like