3d illustration
3d rendering
bacterial infection
biology
cell
concept
contagious
contamination
corona
corona viruses
coronavirus
danger
dangerous
disease
epidemic
fever
flu
global
health
illness
infect
infected
infection
infectious
medical
microbiology
new strain
outbreak
pandemic
pathogen
pathogenic
pathology
pneumonia
protection
quarantine
respiratory
sars
science
vaccine
viral
virology
virus
virus spread