Common Cold Symptoms 2024. Cold sores are contagious from when you first notice tingling or other skin symptoms (prodromal stage) until they completely heal. Cold symptoms such as runny/stuffy nose and/or cough lasting more than 10 days without improvement thick, yellow nasal mucus accompanied by a fever that lasts.
A cdc survey found that a majority of americans take precautions when sick with cold or cough symptoms (such as avoiding contact with people at higher risk and avoiding large indoor gatherings). What are covid symptoms in 2024?