2019
affected
care
coronavirus
cough
cov
covid
covid 19
dangerous
design
disease
face
failure
fever
headache
health
healthy
human
illness
illustration
infection
influenza
medical
medicine
microorganism
ncov
outbreak
pandemic
particle
person
pneumonia
respiratory
shortness of breath
sickness
sore throat
symptom
transfer
transmit
vector
viral
virus
warning