What's the difference between COVID-19, RSV and influenza?

The virus (although all are respiratory viruses); The flu is caused by influenza virus, COVID-19 by SARS-CoV-2 virus, and RSV by respiratory syncytial virus. The symptoms are fairly similar, with the flu and Covid sharing more similarities (with exception of the taste/smell loss sometimes during Covid). RSV, which is very common in kids, has symptoms more similar to the common cold (including wheezing).

Edit: the link you have shared also answers all the questions. 👍🏼

Jesus fucking Christ these articles…

Dogs can get influenza.

well if you can't tell, does it matter?

The year. It's all the same thing just it's cute to rename it every year. COVID is SARS but that didn't test well with audiences.