VAIDS (Vaccine Acquired Immune Deficiency Syndrome) is not a real medical condition, despite the hashtag being used on Twitter since at least December 2021. Some people baselessly claim that VAIDS is a weakening of your immune function from COVID-19 vaccines, similar to how people with untreated HIV or AIDS have severely compromised immune systems. However, this is a myth. There is no evidence that COVID-19 vaccines lead to immunodeficiency, HIV, or AIDS. Some people with preexisting autoimmune conditions may experience flare-ups of symptoms after receiving a vaccine, but most flare-ups are mild and don’t require treatment. The risks of COVID-19 infection are much greater than the risks of COVID-19 vaccination.