英文關鍵字
antibiotics
background
biology
china
concept
contagion
corona
coronavirus
covid19
diagnosis
disease
epidemic
fever
flu
health
hiv
human
illness
immunity
infect
infection
influenza
isolate
lethal
medical
medicine
microbe
microbiology
pandemic
pathogen
pathogenic
sars
science
scientific
sick
syndrome
treatment
vaccine
viral
virology
virus
viruses