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are you still contagious if you have a lingering cough are you still contagious if you have a lingering cough after a cold are you still contagious with covid if you have a lingering cough are you still contagious with the flu if you have a lingering cough are you still contagious with a cold if you have a lingering cough are you contagious if you have a lingering cough are you contagious when you have a lingering cough am i still contagious if i have a lingering cough after covid if you have a lingering cough after the flu are you still contagious
