Can vegetables still be eaten if they were cut with a knife while bleeding from an HIV-infected person?

In general, vegetables contaminated by blood can be safely consumed if thoroughly cooked; however, consuming them raw or lightly prepared—such as in salads or cold dishes—without proper cooking poses a potential risk of infection. The detailed analysis is as follows:

The human immunodeficiency virus (HIV) has poor survival ability outside the body and is highly sensitive to heat, being rapidly inactivated at normal cooking temperatures. If vegetables are contaminated during food preparation due to bleeding, promptly rinsing off the blood with clean water followed by thorough heating through stir-frying, boiling, or stewing will deactivate any virus present. In such cases, there is no risk of infection via the digestive tract, and the food can be safely eaten.

However, if contaminated vegetables are not washed properly and are consumed raw or in cold dishes after only rinsing with cold water, the virus may enter the body through breaks in the oral mucosa or minor wounds in the digestive tract. The risk increases when there is significant bleeding or widespread contamination. Therefore, vegetables that have been exposed to blood and inadequately processed should not be consumed.

To ensure safety during daily food preparation, protective measures such as wearing gloves are recommended, especially when there are cuts or wounds on the hands. When vegetables become contaminated with blood, appropriate handling should be determined based on how they will be consumed. Raw vegetables must be thoroughly washed and properly disinfected, while cooked dishes should always be heated completely through. These practices help safeguard dietary health and prevent unnecessary concerns about potential infections.