org/diseases-conditions/respiratory-syncytial-virus/
symptoms-causes/syc-20353098. This is a very
common respiratory virus that many get.
When you have a virus such as cold or flu or rsv, it's important to take care of yourself. You also need to watch for secondary infections. This is when bacteria does form in sinuses, lungs, ears, etc. This would be situations like sinusitis, bronchitis, pneumonia, ear infections.