HIV infection

blood transfusion may infect the recipient (and not the donor) with not only HIV, but with some other blood-transmittable infections. that is the reason why the blood needs to be screened for the presence of any of these infections. if it is positive of any infection, they would not allow transfusion to happen.

The only way a donor can get HIV infection is if the Blood Transfusion set used to collect the blood is infected. A donor must ensure that a fresh and sterilized transfusion set is being used. Better still buy your own good quality sterilization set for the donation. A recipient gets infected if the transfusion set is infected or the donor is infected. When a transfusion is required, pleas make sure that only screened and certified blood is used. It is also a very good practice to buy a good quality sterilized transfusion set.

yes, even a small infected mili drop when comes in connection with ones blood, HIV passes from the infected to the normal person. thats why injections are not used again in any case as it has touched the blood of a person and if the same injection is used for others then the infection passes from the left over blood in the injection.

Yes. there are 4 modes of transmission of HIV. One is the usual sexually-transmitted. second is blood donation. third, use of infected needles and last is mother to child transmission upon birth