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Coronaviruses are types of viruses that typically affect the respiratory tracts of birds and mammals, including humans. Doctors associate them with the common cold, bronchitis, pneumonia, and severe acute respiratory syndrome (SARS), and they can also affect the gut. https://www.medicalnewstoday.com/articles/256521
Originally posted here: https://steemit.com/health/@sultanmr/corona-virus-and-immune-system
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