When caught up in a chaotic crash scene involving blood, confusion, and multiple injuries, rescuers’ first instinct is to get victims out as quickly as possible. In this urgency, untrained Good Samaritans may ignore serious but less obvious risks, such as exposure to infected blood from multiple injured individuals. This blood can easily come into contact with open wounds, the eyes, mouth, or other vulnerable areas of a rescuer, creating a real risk of infection.
For example, on 22 October 2025, a dangerous crash occurred along the Kampala–Gulu Highway when a catastrophic collision involving two buses and two other vehicles killed 46 people and injured several others. The incident involved multiple deaths and serious injuries and required urgent rescue efforts due to heavy bleeding, body-to-body contact, and sharp debris. The crash occurred at night, in darkness and in the absence of trained responders, prompting local residents to rush in to rescue survivors and unintentionally put themselves at risk. This scenario, along with several others, exposes rescuers to the risk of contracting HIV (Human Immunodeficiency Virus) at crash scenes.
Dr. Hannington Muwaga, an orthopedic surgeon at Vision for Trauma Care in Africa in Mukono, explains: “Imagine a situation where an HIV-positive person travels in the same vehicle with three HIV-negative passengers and a road crash occurs. If a piece of metal pierces an HIV-positive individual and another person is pierced by a separate piece of metal, or if the same piece of metal injures both an HIV-positive and an HIV-negative person sequentially, either scenario could lead to HIV infection. It is important to remember that HIV spreads only through blood entering an open wound. This risk extends not only to casualties but also to responders, especially untrained individuals acting as first aiders.”
He further explains that surviving a road crash does not always mean returning to life as it was before. Many survivors wake up to life-changing outcomes such as amputations, spinal injuries, fractures, and permanent disabilities. However, in chaotic crash scenes, the unluckiest may also contract HIV and other blood-borne infections, acquired either while acting as rescuers or as injured victims who had direct body-to-body contact with an infected person.
When Does the Risk of HIV Transmission Exist After a Road Crash?
After a road crash, the risk of HIV transmission exists only when blood-to-blood contact occurs, such as in the following situations:
- Assisting an injured person without gloves when both the rescuer and the injured person have open wounds
- Exposure to blood from multiple victims at a crash scene
- Use of unsterilized equipment during emergency response
- Cuts or broken skin coming into contact with infected blood
Important clarification: HIV does not spread simply because someone is injured. The virus must enter the bloodstream through open wounds, cuts, or mucous membranes (the eyes or mouth).
How High Are the Chances of Contracting HIV After an Injury?
The risk of HIV transmission from a single blood exposure is relatively low, but not zero. The risk increases when:
- There is deep bleeding, large amounts of blood, or delayed treatment
- The injured person is HIV-positive and untreated
- First responders or helpers have open cuts or broken skin
Why Are Crash Scenes Risky?
Road crashes often involve heavy bleeding, multiple injured people, untrained bystanders rushing to help, and a lack of gloves or other protective equipment. Good intentions without protection can unintentionally expose helpers, police officers, boda boda riders, and community members to HIV and other blood-borne infections such as hepatitis B and C.
Preventing HIV Transmission at Crash Scenes
- Use protective barriers: Always wear gloves when handling injured persons, and cover your own cuts or wounds immediately before assisting.
- Respond within your skills: If untrained, avoid direct contact with blood and ensure you have no open cuts before helping. If trained, carefully separate or isolate those who are bleeding from others.
- Strengthen emergency response: Equip ambulances, police, and first responders with personal protective equipment (PPE). Train boda boda riders, traffic police, and community members in basic first aid and infection prevention.
- Seek immediate medical care: Injured persons should be taken to health facilities as quickly as possible. Anyone exposed to blood should seek medical attention immediately and receive Post-Exposure Prophylaxis (PEP). PEP can prevent HIV infection if started within 72 hours of exposure. It is available free of charge at government health facilities in Uganda and must be accessed urgently.
When Should You Seek Medical Help Immediately?
Seek medical help immediately if:
- Blood enters your eyes, mouth, or an open wound
- You are cut while helping an injured person
- You are unsure whether you were exposed to blood during an accident. Remember; Helping is very important, but protection while helping is not optional; it is essential.