Symptoms, like a fever, body aches ... Cold symptoms usually come on gradually, whereas the flu can develop without much warning. Flu symptoms often develop within two to three days after infection.

Compared to the flu, fever is rare, but low grade fevers can ... Testing is also important here, since "there is no way to know if it is RSV, COVID or the flu" based off of symptoms alone, Gounder ...

Seasonal flu may not just peak with fever, cough and a sore throat ... “At every age, there are people who have no underlying medical conditions that are still at risk of hospitalization ...

"There is no real way to distinguish COVID-19 from influenza based on clinical symptoms because they overlap so much," he said. Common COVID and flu symptoms include sore throat, fever, fatigue ...

“You can feel feverish without having a temperature ... illness could have a bacterial cause, outside of the flu or COVID.” The fever lasts for longer than 72 hours You feel really sick ...