About snakebite envenoming

Every year, over 5.8 billion people are at risk of encountering a venomous snake, resulting in approximately 5 million bites and up to 2.7 million cases of envenoming: when a venomous snake injects toxins into a human body.

Preventing bites from ever happening is important, but humans and snakes will always coexist and these dangerous incidents will continue to occur. Our focus is to ensure rapid, effective intervention when they do.

What is unique about snakebite?

Snakebite is distinct from other neglected tropical diseases due to its acute and unexpected nature, which requires appropriate and time-critical responses. This challenge is compounded by the extraordinary diversity of venom toxins across species and regions.

While snakebite presents unique clinical challenges, many of the barriers to care are cross-cutting, systemic hurdles in logistics, communication, and infrastructure that are shared across global health.

Investment in this space has historically been low due to scarce and fragmented burden data, a lack of global visibility, and a perception that snakebite is ‘unsolvable’ because it’s not traditionally eliminable. Thus, innovation has stalled across the entire patient journey. Experts have noted challenges at every level, requiring innovation in multiple areas.

This green snake resting on a branch is another member of the pit viper family (likely a Bamboo Pit Viper or a closely related Trimeresurus species).
Workers sowing rice saplings, Rathnapuri village, Hunsur Taluk, Mysuru district, Karnataka. In the flooded paddy fields, workers plant rice barefoot to maintain balance on the slippery ground, leaving them vulnerable to snakebites hidden beneath the water.

Who is most affected by snakebite?

The burden of snakebite is felt most acutely by rural, poor, and agrarian communities predominantly in Sub-Saharan Africa, South Asia, South-East Asia, and Latin America. In many of these high-burden settings, people work outdoors and live far from health facilities, making them vulnerable to snakebite envenoming, while facing challenges in accessing lifesaving care.

Challenges across the snakebite patient journey:

The prize seeks to improve outcomes for people affected by snakebite by incentivising innovative approaches to overcoming challenges in the patient journey.

Innovations are needed across the patient journey in order to support better community responses, help people receive appropriate care faster, diagnose and assess the type of care they need, and improve the quality of medical care snakebite patients receive:

First aid response

Assessment & diagnosis

Access & logistics

Emergency & supportive care

A large clock face forms the background for several medical response elements. In the upper-left, there is an orange first aid kit with a white cross, a medical vial, and some bandages. In the bottom center, two emergency workers wearing green high-visibility vests stand next to a checklist speech bubble. On the right, a green circular icon shows a ringing telephone receiver.

First aid response:

Immediate, informed, and accurate community and health worker responses with improved first aid tools or methods.

Why?

  • Critical hours are often lost due to delays in seeking and accessing appropriate medical care. Extreme distances, lack of transport, deterioration of condition during transit to the medical facility, and fragmented referral systems may prevent patients from reaching help in time.

  • Patients may delay seeking hospital treatment due to a misunderstanding of the seriousness and urgency of snakebites, fear of adverse medical consequences (i.e., amputations or chronic pain), financial barriers, mistrust in the healthcare system, and preference for traditional healers.

Assessment & diagnosis:

Supporting clinical decision-making pathways by understanding patient need and treatment required (e.g., detecting whether venom was injected by the bite or identifying the type of antivenom needed).

Why?

  • An absence of reliable, affordable diagnostic tools to understand the type of venom and how it is spreading means clinicians rely on symptom observation to assess patients – potentially leading to over-treatment of non-venomous bites, incorrect antivenom administration, and unanticipated treatment needs.

A rapid test cassette showing two blue lines sits in front of a smartphone. The phone screen displays a digital image of a rapid test strip with two blue lines, alongside a checkmark icon and a speech bubble. Striped paper rolls with wavy line graphics extend out from behind the phone, and a small patch of grass sits at the bottom right.
A person with a bandaged leg rides on the back of a scooter driven by another person wearing a helmet. Above them, a delivery drone with a medical cross emblem carries a medical supply box. The scene also contains a map location pin, a speech bubble, a map showing a route, and a small medical clinic building.

Access & logistics:

Getting people who have been bitten to appropriate emergency medical care, or bringing appropriate care closer to patients faster.

Why?

  • Most snakebite deaths occur because patients do not reach appropriate medical facilities in time to receive emergency treatment and antivenom.

  • Even when people reach health facilities in time, some facilities lack basic resources, equipment, protocols, and capacity to manage snakebite emergencies, including appropriate antivenom.

Emergency & supportive care:

Addressing the venom’s effects on the patient, depending on whether it’s cardiovascular toxic (heart and circulation), neurotoxic (nervous system), hemotoxic (blood), cytotoxic (tissue), or myotoxic (muscle). 

This could include timely pain management and resuscitation, knowledge of proper antivenom administration, management of adverse reactions, ancillary care, wound management, etc.

Why?

  • Healthcare workers may not have the specific training, resources or experience, which can affect their confidence in managing snakebites and its complications.

wo healthcare workers move a patient lying on a gurney. In the background, a large medical monitor displays a heart rate waveform line. An orange cable connects to the side of the monitor. In the upper-left, there is an image showing a pair of human lungs.

Eligible countries in high-burden settings:

Eligible solutions must be tailored for and implemented in communities where the snakebite burden is felt the most and the unmet need is greatest. These are settings in low and middle-income countries with high snakebite mortality and morbidity rates.

The map below highlights the countries that are deemed as high-burden settings and are eligible under the prize.

A world map outline highlighting three distinct geographic regions. The purple shading covers Latin America, stretching from Mexico through Central America and the entirety of South America. The green shading covers the entire continent of Africa, including Madagascar. The orange shading highlights South and Southeast Asia, spanning from Pakistan and India through the Indochinese Peninsula, the Philippines, and the Indonesian archipelago down to Papua New Guinea.

You can find the list of eligible countries here:

If you have questions about a country’s eligibility, please contact the team at snakebite.prize@challengeworks.org

Countries affected by snakebite:

Algeria

Angola

Argentina

Bangladesh

Belize

Benin

Bhutan

Bolivia

Botswana

Brazil

Burkina Faso

Burundi

Cambodia

Cameroon

Central African Republic

Chad

Chile

Colombia

Congo

Costa Rica

Cote d'Ivoire

Democratic Republic of Congo

Djibouti

East Timor

Ecuador

Egypt

El Salvador

Equatorial Guinea

Eritrea

Eswatini

Ethiopia

French Guiana

Gabon

Gambia

Ghana

Guatemala

Guinea

Guinea-Bissau

Guyana

Honduras

India

Indonesia

Kenya

Laos

Lesotho

Liberia

Libya

Madagascar

Malawi

Malaysia

Mali

Mauritania

Mexico

Morocco

Mozambique

Myanmar

Namibia

Nepal

Nicaragua

Niger

Nigeria

Pakistan

Panama

Papua New Guinea

Paraguay

Peru

Philippines

Republic of the Congo

Rwanda

Saint Lucia

San Marino

Sao Tome and Principe

Senegal

Sierra Leone

Somalia

South Africa

South Sudan

Sri Lanka

Sudan

Suriname

Tanzania

Thailand

Togo

Trinidad and Tobago

Tunisia

Uganda

Uruguay

Venezuela

Vietnam

Western Sahara

Zambia

Zimbabwe