dangerous virus floating in a cellular environment, sars pandemic risk.

red pink toy orange yellow dangerous virus floating cellular environment sars pandemic risk microbecorona coronavirus covid-19 quarantine infection biohazard ncov viral flu pathogen alert china contagious disease human influenza antibiotics asian bacteria chinese coronavirinae coronaviruse corona viruses diagnosis epidemic epidemiology fever health illness immunity infect lethal lung medical medicine microbiology new strain pathogenic pneumonia prevention science syndrome virology warning pollen allergy model funny fun humor cheerful joke simulation symbol education knowledge concept based microscopic view cell respiratory 2019-ncov outbreak