19
2019
alcohol
alert
boy
contagious
contamination
corona
coronavirus
cov
covid
covid 19
cross
danger
desinfectant
disease
epidemic
forbidden
hands
hanshake
health
illness
infected
infection
infectious
man
medical
microbiology
ncov
not
pandemic
pneumonia
prevention
protection
quarantine
shield
sick
spray
symptoms
tips
virology
virus
washing