Question

What do studies support in regard to the relationship between saliva and tears, and blood-borne diseases?

O Saliva and tears are the only bodily fluids that can transmit a blood-borne disease.
O Saliva and tears can carry a blood-borne disease, but can't transmit a blood-borne disease.
O It is impossible for saliva and tears to transmit a blood-borne disease.
O It is unlikely, but possible, for saliva and tears to transmit blood-borne diseases.

Answer 1

Saliva and tears can carry blood-borne diseases but transmission of these diseases through these fluids is highly unlikely. They are not considered major vectors for diseases like HIV, which require significant fluid exchange to transmit.

Step-by-step explanation:

Studies support that saliva and tears can carry blood-borne diseases like HIV, but they are not considered to be fluids that can easily transmit these diseases. While saliva does contain HIV, it cannot spread the virus unless it enters another person's bloodstream, which is highly unlikely under normal circumstances. Similarly, tears are not commonly associated with the transmission of blood-borne diseases. Hence, for transmission to occur, there typically needs to be a significant exchange of body fluids known to carry the virus, such as blood, semen, vaginal fluid, or breast milk, often through sexual contact or shared needles.