No, not unless theres a cut in your mouth.
No, HIV is not transmittable through tear, saliva, or sweat. The only way that saliva would be able to transmit HIV is if there was a significant amount of blood present, and it enter into an open wound of a person.
Assuming no blood in any of these fluids, they don't transmit HIV: Sweat, Saliva, Urine, Tears, Vomit, Nasal Discharge (snot) & Feces.
Saliva is more acidic than tears. Saliva typically has a pH range of 6.0 to 7.4, while tears have a slightly higher pH range of 7.0 to 7.8.
When they are tears of joy.
They are made of lymph.
Sweat, tears, urine do not transmit HIV. that's not entirely correct. HIV is found in blood, sweat, tears, and saliva. it also been found that HIV can live in these fluids outside of the body for several days.
IgA
as microbes use oxygen, they produce hydrogen peroxide as a byproduct and release it. that H2O2 helps the lactoperoxidase enzyme found in tears and saliva to catalyze the oxidation of iodite and thiocyanate into hypoiodite and hypothiocyanate, which are powerful antimicrobials. Is this what you were looking for?
Saliva, tears, mucus, milk.
Yes it is true.
False