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The day focuses on successes in the global fight against the disease and the importance of continuing those efforts for the 36.7 million people worldwide who are living with HIV/AIDS.
As recently as 2012, more than a third of Americans incorrectly believed the virus could be transmitted by sharing a drinking glass with an HIV-positive person, swimming in the same pool as someone infected or touching the same toilet seat.
Here are nine facts to know about HIV and AIDS and how to prevent and treat both:
1. HIV is a virus. The human immunodeficiency virus attacks CD4 or T cells in the body that help the immune system fight off infection. People infected with HIV can become increasingly more susceptible to infections if the virus goes untreated and impairs those immune cells. Like the virus that causes the chicken pox, HIV remains in the body.
2. AIDS is a chronic condition caused when an individual has the HIV infection and either a low count of immune cells, an opportunistic infection or both. AIDS is actually the third stage of HIV infection, with the first being exposure to the virus.
3. The second stage of HIV is the most critical for treatment. Although exposure to the virus can immediately create flu-like symptoms in some people, many are unaware they have been infected. HIV can be asymptomatic for years, but the virus is still attacking the body's immune system even if the person doesn't feel sick. The CDC recommends antiretroviral treatment for anyone with HIV, which will both minimize the damage to the person's immune system and also reduce the chance of transmission.
4. Transmission is most common among two specific activities: sexual contact and needle/syringe sharing. Less commonly, infants born to HIV-positive mothers who did not receive HIV treatment, either through shared blood during pregnancy or while nursing after birth.
5.Casual contact – social kissing, hugging, sharing toilets or plates – will not transmit HIV. Although it is possible to get the virus from a reused or improperly sterilized tattoo or piercing needle, or from contaminated ink, there have been no known cases of anyone in the U.S. getting the disease that way. Likewise, mosquitoes or other insects cannot transmit HIV.
6. Early treatment and antiretroviral treatment have proven successful in making HIV a chronic condition, instead of a fatal diagnosis, like it was when World AIDS Day began. Yet 1 in 7 Americans who have HIV don't know it. That's why everyone between 13 and 64 should be tested for the virus at least once. People with higher risk factors may need more frequent testing, which they can discuss with their doctor.
7. Despite improvements in treatment for HIV, there is still no cure. Researchers are working to develop a vaccine that would train the body's immune system to fight the virus and prevent it from taking hold. There is also PrEP – a combination of HIV drugs known as pre-exposure prophylaxis – that can be taken daily to prevent the virus from establishing a permanent infection. It is not 100 percent effective, although it does reduce the risk of infection by more than 90 percent among those who take it properly.
In 2017, Dr. Eugene McCray, CDC director the Division of HIV/AIDS Prevention, and Jonathan Mermin, director of the Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP) released a letter disclosing that when HIV patients have low enough viral detection, the virus cannot be transmitted.
“Across three different studies, including thousands of couples and many thousand acts of sex without a condom or pre-exposure prophylaxis (PrEP), no HIV transmissions to an HIV-negative partner were observed when the HIV-positive person was virally suppressed,” the letter said. “This means that people who take ART daily as prescribed and achieve and maintain an undetectable viral load have effectively no risk of sexually transmitting the virus to an HIV-negative partner.”
8. With the advances in treatment and prevention, HIV/AIDS doesn't generate the headlines it did a generation ago. An estimated 37,600 Americans became infected in 2014, an 18 percent drop nationwide from 2008. Despite that improvement, two populations experience a greater burden of new HIV cases: African-Americans, who accounted for 45 percent of all new infections, and people in the southeastern U.S., who account for roughly half of new infections.
9. One of the most important factors in effective treatment and prevention of the disease is knowing your status. Hospitals, community health clinics and many doctors offer HIV tests, or you can visit GetTested to find the closest site for free and confidential testing for HIV, syphilis and other diseases. Those without online access can text their ZIP code to 566948.