How do you know if you had COVID-19 and didn't realize it?

In the midst of the third wave of the COVID-19 pandemic in the country, everyone or almost everyone knows someone who tested positive for the disease,

Related Keywords

Jerusalem ,Israel General ,Israel ,United States ,University School ,Illinois ,Wuhan ,Hubei ,China ,Spain ,Chicago ,Israeli ,Spanish ,American ,Nadav Davidovich ,Chelsea Ernest ,Ben Gurion University School Of Public Health ,Us Centers For Disease ,Israeli Ministry Of Health ,American Academy Of Ophthalmology ,Cnn ,Ben Gurion University School ,Public Health ,Israeli Ministry ,Disease Control ,Johns Hopkins Hospital ,American Academy ,