abstract
acute
arabia
atypical
awareness
background
blood
blur
caution
clinic
conceptual
corona
coronavirus
dangerous
death
diagnosis
disease
east
epidemic
health
healthcare
hospital
human
hygiene
hygienic
illness
immunity
infection
influenza
information
injecting
injection
lethal
medical
medicine
mers
pneumonia
prevention
purple
respiratory
sars
severe
sickness
syndrome
syringe
treatment
vaccine
viral
virus
warning