In proactive field testing,
specialized medical teams
proactively
visit high-risk areas,
where an outbreak or a pandemic is more likely.
Proactive field testing
is done through house visits,
especially in crowded neighborhoods
and highly-populated locations.
They knock on your door,
and ask you questions
that will inform the tests.
They ask about any suspected cases
and symptoms residents might be showing.
Then, they take samples
back to the lab to be tested and confirmed.
This precautionary method
helps control the spread of the virus
at a very early stage.