An official website of the State of Oregon
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Infectious diseases are caused by germs (viruses, bacteria or other pathogenic microbes). Germs that can infect the respiratory system are frequently spread through mucus and saliva when a person coughs, sneezes, talks or laughs.
Infectious respiratory illnesses include influenza, COVID-19, RSV and many more.
Symptoms of respiratory illness include:
The best way to prevent the spread of infectious respiratory illness is to:
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