One such factor is acute infection, the period of six to 12 weeks after contracting the virus. The resulting viral DNA is then imported into the cell nucleus and integrated into the cellular DNA by a virally encoded enzyme, integrase , and host co-factors. Careful practice of infection control, including universal precautions using protective practices and personal protective equipment to prevent HIV and other blood-borne infections , protects patients as well as health care providers from possible HIV transmission in medical and dental offices and hospitals. Two recent studies conducted among heterosexual couples demonstrated that HIV-positive people who are on ART are about 20 times less likely to transmit the virus to their HIV-negative partners than people who are not using the medication. If you keep injecting drugs, you can lower your risk for getting HIV by using only new, sterile needles and works each time you inject. Resistance mutations may already be present at the time of infection, thus most clinicians will test the patient's virus for resistance mutations prior to starting or changing a regimen. Share Your Story Many drugs have become available to fight both the HIV infection and its associated infections and cancers. Unprotected insertive and receptive anal sex predictors were highly correlated, thus separate models were run. Dispose of needles safely after one use. Unprotected sex means sex without a barrier such as a condom. Kissing, erotic massage and mutual masturbation are all examples of safer sex activities. Although HIV transmission is possible in health care settings, it is extremely rare. Recombination events may occur throughout the genome. There is no risk of transmission if the skin is not broken. Pharmacies accept used needles in containers for safe disposal.