Several leading medical organizations have released updated recommendations for flu, COVID-19, and respiratory syncytial virus (RSV) vaccines for the 2026-27 respiratory season. The guidance is available through the Vaccine Integrity Project. It’s particularly important for people living with human immunodeficiency virus (HIV).
HIV affects the immune system, including CD4 cells that help the body fight infections. People with advanced or untreated HIV may have weaker immune defenses.
HIV treatment can help protect immune function. For people with HIV, immune status can affect infection risk and the response to vaccination.
Vaccines train the immune system to recognize and fight specific viruses. This can help your body respond more quickly if you’re exposed.
There isn’t one vaccine plan that’s right for everyone with HIV. Your age, CD4 count, HIV treatment and viral load, vaccination history, and other health conditions can all influence which vaccines are recommended and when you should receive them.
The Vaccine Integrity Project, working with the American Medical Association, reviewed the latest evidence on flu, COVID-19, and RSV immunizations for the 2026-27 respiratory season. The findings helped inform recommendations from several leading medical organizations, including:
The review included 299 studies published mostly between August 2025 and June 2026. It found that flu, COVID-19, and RSV immunizations continued to provide meaningful protection against hospitalization, severe illness, and death.
The amount of protection can vary based on the virus, the vaccine or immunization, the season, and a person’s health. For people with HIV, vaccination decisions should take into account factors such as age, CD4 count, and HIV viral load.
For the 2026-27 respiratory season, COVID-19 and flu vaccines have updated formulations. There are also three RSV vaccines for adults. These vaccines differ in how they are made and which age groups or risk groups they are approved for.
The U.S. Food and Drug Administration (FDA) has approved four COVID-19 vaccine options. All four vaccines are given by injection.
The National Institutes of Health (NIH) recommends a current-season COVID-19 vaccine for adults and adolescents with HIV, regardless of CD4 count or viral load. People with advanced or untreated HIV may receive an additional dose six months after their last dose.
All U.S. flu vaccines for the 2026-27 season are trivalent. This means they are designed to protect against three influenza viruses.
Most people need one flu vaccine dose each season. Some children may need a second dose based on their age, vaccination history, or individual health circumstances. For people with HIV, the NIH recommends an age-appropriate inactivated or recombinant flu vaccine each year.
The live-attenuated nasal flu vaccine FluMist contains a weakened form of the flu virus to help the body build protection. According to NIH guidance, people with HIV shouldn’t receive this vaccine, regardless of CD4 count.
There are three FDA-approved adult RSV vaccines.
For adults, the CDC recommends a single dose of RSV vaccine for everyone age 75 and older and for adults ages 50 through 74 who are at increased risk of severe RSV illness.
For people with HIV, the NIH recommends RSV vaccination at age 75 and older. For those ages 50 through 74, vaccination is recommended when the CD4 count is below 200 cells per cubic millimeter or another health condition raises the risk of severe RSV. The RSV vaccine isn’t currently given every year.
For people who are immunocompromised, the benefits of vaccination generally outweigh the risks. Current evidence shows that flu, COVID-19, and RSV immunizations can reduce hospitalization, severe illness, and death. People with weakened immune systems may not respond as strongly to vaccines, but vaccination can still provide protection.
Vaccines can cause side effects, but serious side effects are uncommon. Your healthcare team can explain what to expect and help you weigh the benefits and risks based on your:
The right vaccine and timing can vary for people with HIV. A lower CD4 count or untreated HIV can reduce the immune response to some vaccines, according to NIH guidance.
Ask not only which products are available, but which type, dose, and timing make sense for you.
Your healthcare team may consider:
Some live vaccines may not be appropriate for people with HIV. For example, the nasal spray flu vaccine is a live vaccine and shouldn’t be used by people with HIV, regardless of CD4 count, according to NIH guidance.
Timing may also matter. The NIH HIV immunization guidelines recommend the current-season COVID-19 vaccine regardless of CD4 count or viral load. For RSV vaccination in people ages 50 through 74 with a CD4 count below 200 cells per cubic millimeter, some clinicians may consider waiting until immune function improves because data in this group are limited.
Your HIV care team can recommend the best timing based on your CD4 count, viral load, and vaccination history. Don’t delay, skip, or change HIV treatment to get vaccinated unless your healthcare team recommends it.
People with weakened immune systems may not develop as strong a response to vaccines as people with healthy immune systems. That doesn’t mean vaccination has no benefit.
The Vaccine Integrity Project found that respiratory-virus immunizations continued to reduce severe outcomes among people with immunocompromising conditions, although protection varied.
In many cases, COVID-19, flu, and RSV vaccines can be given at the same visit.
Whether that makes sense for you may depend on your immune status, previous vaccinations, expected side effects, and other health needs. Ask your HIV care team whether getting more than one vaccine at the same appointment is appropriate.
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