coronavirus infection infographic. people characters with mers-cov symptoms dry cough, shortness of breath

2019ncov banner biohazard biohazzard breath character chill concept corona coronavirus cough cov danger dangerous death dry epidemic fatigue fever flyer health human hygiene illustration immunity infection infographic infographics informational linear lung man medical merscov microbiology organism outline pandemic people person poster risk shortness sneezing symptom transmission vector viral virus