Non-Variola Orthopoxvirus (NVO) Laboratory Testing by Demographics
Total Female Tests Total Male Tests Female Positivity Rate Male Positivity rate
*Data from LRN laboratories and four commercial labs where sex was provided as either “F” or “M”.
Data from Laboratory Response Network laboratories and 4 commercial laboratories using the CDC non-variola orthopoxvirus (NVO) assay. Due to low testing volume data before May 29, 2022 is omitted. Data are updated every Thursday.
Data on sexual orientation or gender identity are not available in laboratory test results reported to CDC. Figure includes test results for specimens with “F” or “M” reported for sex. Sex is reported as “unknown” or is not reported for 18.2% of specimens. The test results for these specimens are excluded from the figure.
Total tests include all specimens tested, including positive, negative, equivocal, and inconclusive results.
Percent Positivity based on specimens tested, not patients. Most patients have multiple specimens tested. Percent positive is calculated as (number of positive specimens)/(number of positive +negative specimens) per week. Results that are equivocal or inconclusive are not included.
Re-processing of data during the weeks 10/22 and 10/29 resulted in updates to the number of specimens tested and positivity rates during these weeks.
Specimens Tested: 18 + Specimens Tested: 13-17 Specimens Tested: 0-12
18 + Positivity Rate 13-17 Positivity rate 0-12 Positivity rate