Test Positivity among HCWs, stratified by test type, prior TST status, BCG vaccination status and country of origin.
**<p>Including Canadian-born aboriginals.</p><p>Note: 2 step TST: 5/100, (5.0%).</p
Infectious Diseases, positivity, stratified, tst, bcg, vaccination
DOI identifier: 10.1371/journal.pone.0043014.t002
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