Many Americans may want to consider taking a daily pill that can help prevent HIV infections but may not even know it exists.
The Centers for Disease Control reports certain groups are most at risk for contracting the virus including as many as a quarter of gay and bisexual men and nearly 20-percent of people who use injectable drugs.
The CDC says doctors should counsel those patients about a medication referred to as “prep” or pre-exposure prophylaxis.
PREP, like the drug Truvada, has been shown to reduce the risk of sexually acquired HIV by more than 90-percent.
It can reduce the transmission via injectable drugs by up to 70-percent.
The CDC says recent studies suggest some doctors have never heard of prep.
About 40,000 people are diagnosed with HIV each year in the US.