When people come down with a cold or flu, for instance, it is usually a while before the symptoms start to show, and even during this period, the individual who is about to fall ill can spread the virus or the infection.
https://ift.tt/2RBhYuw When people come down with a cold or flu, for instance, it is usually a while before the symptoms start to show, and even during this period, the individual who is about to fall ill can spread the virus or the infection.
When people come down with a cold or flu, for instance, it is usually a while before the symptoms start to show, and even during this period, the individual who is about to fall ill can spread the virus or the infection.
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