Influenza Positive Tests Reported to CDC by
U.S. Clinical Laboratories
2019-2020 Season
Week
Total A
Total B
Percent Positive A
Percent Positive B
Total # Tested
% Positive
201940
161
341
0.87
1.86
18318
2.74
201941
150
423
0.89
2.53
16672
3.43