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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Matern Child Health J. 2014 Sep;18(7):1578–1582. doi: 10.1007/s10995-013-1415-6

Figure 2.

Figure 2

Influenza subtypes reported during the 2010–11 influenza seasona among severely ill pregnant women with influenza reported to the Pregnancy Flu Line (PFL), compared to subtypes among influenza pediatric deaths and WHO/NREVSS specimens

aFor PFL and pediatric deaths reported to the Influenza-Associated Pediatric Mortality Surveillance System, this reporting includes onset dates from August 11, 2010 through May 21, 2011. Reporting dates differ for influenza differ for influenza-positive specimens (not persons) submitted to U.S. laboratories collaborating with the World Health Organization/National Respiratory and Enteric Virus Surveillance System (WHO/NREVSS) and include onset dates from October 3, 2010 through May 21, 2011

bp <0.01 for Fisher’s exact test of proportion of PFL cases with influenza A (H1N1) compared to both pediatric deaths with influenza A (H1N1) and all ages with influenza A (H1N1)

cIncludes pregnant women who died or who were admitted to the intensive care unit and recovered

dSource: Influenza-Associated Pediatric Mortality Surveillance System (5)

eSource: U.S. laboratories collaborating with the World Health Organization/National Respiratory and Enteric Virus Surveillance System (WHO/NREVSS) (6); reporting dates are different than for the PFL and pediatric deaths as noted above