2
19
2019
ab
ag
analyze
analyzing
antibody
antigen
blood
care
certificate
check
checkup
coronavirus
cov
covid
covid19
diagnosis
exam
form
health
igg
igm
infection
laboratory
medical
medicine
nasopharyngeal
ncov
negative
pcr
permit
positive
rapid
reactive
report
result
rt
rtpcr
sample
sars
sarscov2
swab
test
testing
throat
up
virus
work