hello thanks for using health care magic All questions are important so long as it concerns someone s health. Saliva is known to contain antibodies against HIV but infective viral strains have not been isolated in the saliva of infected persons unless that infected person is has wounds or ulcers in the mouth through which blood leaks out. Only saliva alone, the risk is minimal if not zero and you do not need to worry. However, screening to know one s HIV sero-status is always important to guide on what measures to take. So i will recommend you do screening even if the risk is minimal at least to be sure and certain of your sero-status. An initial testing should be done now, then two others at three months and at six months. Hope this helps. Best regards Dr Achuo