Symptoms of covid disease and negative smear. According to science, there are three possible causes - Wire Service Canada

Cough, sore throat, cold, possibly even a mild fever and a strong suspicion of infection Corona virus disease. But the smear is still negative. Then after

Cough, sore throat, cold, possibly even a mild fever and a strong suspicion of infection Corona virus disease. But the smear is still negative. Then after a few days, as the symptoms subside, the sme… [+1758 chars]

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