MedlinePlus.gov en Twitter: "RT @NIH: Cough, cough! Feeling sick? Remember that antibiotics don’t work against cold and flu viruses. Learn how to block harmful germs an…" / Twitter

MedlinePlus.gov en Twitter: "RT @NIH: Cough, cough! Feeling sick? Remember that antibiotics don’t work against cold and flu viruses. Learn how to block harmful germs an…" / Twitter

RT

@NIH

: Cough, cough! Feeling sick? Remember that antibiotics don’t work against cold and flu viruses. Learn how to block harmful germs an…