What is a public health laboratory?Learn how labs are protecting you. More. Our Work APHL helps connect public health labs with decision makers, health partners, the media and the public.APHL and our member labs have been featured in: It looks like your browser does not have JavaScript enabled. Please turn on JavaScript and try again. From the APHL Blog Tweets by APHL It looks like your browser does not have JavaScript enabled. Please turn on JavaScript and try again.