AIDS is a syndrome. You can have the syndrome from one thing or another. It only started being really talked about because of its association with HIV (a virus). Look up Kaposi sarcoma. You can have this from one thing or another - it’s most often associated with HIV/AIDS. (Think: Why wouldn’t they just call it HIV or AIDS? Because you can have HIV without AIDS. You can have AIDS without HIV just like you can have Kaposi sarcoma without HIV or AIDS. However, again, these things are most often found together.)
SARS is a syndrome. There were a number of outbreaks of SARS before this one. It can be caused by the coronavirus - in this case we are calling it SARS-CoV2 because just saying “severe acute respiratory syndrome” is not descriptive enough in terms of epidemiology. The first part says it’s SARS and the second part says what type of infection it’s related to.
A syndrome and a disease are not the same.
Great Post, but these idiots at FR think AIDS = HIV.