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