pretest probability code example

Example: pre test probability

low pre-test probability (10–20%)...
	asymptomatic individuals in a presumed low prevalence environment 
moderate pre-test probability (40–60%)
	cough and fever in a city/jurisdiction with known cases
high pre-test probability (80–90%) 
	may include a patient with fever, cough, shortness of breath, 
	with a known close contact with confirmed COVID19.