Undetectable = Untransmittable. CDC Supports the Science

Undetectable = Untransmittable. CDC Supports the Science


The Centers for Disease Control and Prevention has taken note of what scientific research has confirmed over the last few years: when HIV-positive individuals take their medication and thus achieve undetectable levels of the virus, they are unlikely to spread HIV.


For quite some time, many experts and HIV organizations have been pushing the idea that undetectable equals untransmittable.

On the recent National Gay Men’s HIV/AIDS Awareness Day, the CDC issued a statement, noting, “Scientific advances have shown that antiretroviral therapy (ART) preserves the health of people living with HIV. We also have strong evidence of the prevention effectiveness of ART. When ART results in viral suppression, defined as less than 200 copies/ml or undetectable levels, it prevents sexual HIV transmission.”

So, what does all this mean? First, understand the term “viral load” refers to the amount of HIV in the blood. An undetectable viral load is when the amount of HIV in the blood is so low that it can’t be measured, according to the CDC. Effective antiretroviral therapy reduces viral load, ideally to an undetectable level – when taken consistently and correctly.

Technically, people with an undetectable viral load still have HIV in their body so there is still a very small chance they can transmit HIV through sex for various reasons ranging from medication adherence, medication interactions, other STDs, and other unforeseen factors.

Yet research is clearly proving HIV treatment works. The CDC notes, “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 key is taking ART daily as prescribed. Unfortunately, many HIV-positive individuals are not getting the care and treatment they need.

Spreading knowledge about Treatment as Prevention (TasP) and research on undetectable viral loads is essential to the ongoing fight against HIV and the stigma associated with HIV.

This is one of the reasons Palmetto Community Care works so hard to encourage people to get tested so they can get immediately connected with care should they test positive. The agency also is committed to helping HIV-positive individuals in our community who are not in treatment and getting them back into medical care and on a path to viral suppression. Even though the research and statement from the CDC is encouraging, our agency continues to promote the practice of safer sex, condom use and regular testing in our efforts to end the HIV epidemic.

We believe that “Undetectable = Untransmittable” is key in our work of helping to reduce HIV stigma in our community, incentivizing HIV medication adherence for protection of sexual partners and transmission rate reduction, and improving overall health outcomes right here in the Lowcountry.


Michael Luciano

Peer Adherence Educator

Read Bio

Michael Luciano wears many hats but all his responsibilities have one goal: to bring about education and awareness of HIV/AIDS. Michael developed a HIV 101 course in early 2012 that has since grown into a detailed presentation – “HIV Self-Management & Self Advocacy” – that is presented monthly to new Palmetto Community Care clients. Michael works with other staff members as a peer-facilitator for the Healthy Relationships program as well as helping coordinate the Shanti LIFE (Learning Immune Function Enhancement) program, an intensive 12-week educational program that explores 26 different co-factors to health.
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Submitted by Fred Walker (not verified) on Fri, 02/12/2021 - 00:09


It looks like you've misspelled the word "satistics" on your website. I thought you would like to know :). Silly mistakes can ruin your site's credibility. I've used a tool called SpellScan.com in the past to keep mistakes off of my website.


Submitted by Randy Shields (not verified) on Thu, 04/08/2021 - 10:23


It looks like you've misspelled the word "satistics" on your website. I thought you would like to know :). Silly mistakes can ruin your site's credibility. I've used a tool called SpellScan.com in the past to keep mistakes off of my website.


Submitted by jimdofreeenags (not verified) on Thu, 09/23/2021 - 17:06


We spent a lot of time at her home. Maybe so her mother could keep an eye on us. Mrs. Spencer made sure to be around, offering drinks, snacks, chit chat. I noticed that she was fairly young herself. Granted at my age, anyone over 25 was old, but she was probably mid-30s, divorced. If she was a indiction of how Carley would develop, maybe I should wait. Mrs. Spencer had fuller breasts and a nice butt. She appeared to be in great shape for her "advanced" age. I knew she was keeping an eye on me as much as I was on her and her younger daughter. Her eldest, Sharon was away at college at the time. With Mrs. Spencer around we mostly limited ourselves to holding hands and sneaking in a few light kisses. One day Mrs. Spencer caught us by surprise walking in as I'd slid my hand up from Carley's stomach to rub her right breast through her shirt. She didn't really need a bra yet, so I could feel her nipple, hard, through her shirt. Just this much contact had me hard also.

https://sites.google.com/view/INg2hwmen21yFHvk https://sites.google.com/view/joB0qY4dvGI4gxLa

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