Statistics

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Philadelphia

During week 20, febrile/flu-like illnesses at emergency departments increased for children, however overall remained at baseline levels. Sentinel hospital laboratory surveillance for influenza A and B demonstrated slight decreases for specimens positive for both virus types as the number of reports were in the single digits. There were 4 reports of severe influenza (Philadelphia resident, positive by rapid test, PCR or culture, and hospitalized for ≥ 24 hrs.) during this time frame, of which 3 (75%) were due to influenza A. There were no influenza associated deaths reported during week 20 and the total number of influenza associated deaths so far this season is 49, including one pediatric case. There were no influenza outbreaks (≥ 1 case of laboratory confirmed influenza) reported in a long term care facility during week 20.[/lsvr_content_box]

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Pennsylvania

​Flu Activity Code: SPORADIC (week 19 ending May 12, 2018)

The Pennsylvania Department of Health (PADOH) has reported “sporadic” influenza activity, which is defined by CDC as small numbers of laboratory-confirmed influenza cases or a single laboratory-confirmed influenza outbreak has been reported, but there is no increase in cases of ILI. Laboratory, hospital emergency department, and sentinel medical provider data indicate flu activity continues to decrease. The overall influenza activity has peaked at week 6 (week ending 2/10/2018). From 10/1/17 to 5/12/18, there have been 121,088 reports of influenza (positive by rapid test, PCR, or culture). The majority of influenza throughout the state has been identified as influenza A (79,611 reports, 65.7%). There have been 256 influenza related deaths reported this season, including seven pediatric deaths. PADOH no longer provided updated influenza data as of May 12, 2018, as flu activity decreased to baseline levels.

​No Activity	No laboratory-confirmed cases of influenza and no reported increase in the number of cases of ILI.
SPORADIC	​Small numbers of laboratory-confirmed influenza cases or a single laboratory-confirmed influenza outbreak has been reported, but there is no increase in cases of ILI
LOCAL	​Outbreaks of influenza or increases in ILI cases and recent laboratory-confirmed influenza in a single region of the state
REGIONAL	​Outbreaks of influenza or increases in ILI and recent laboratory confirmed influenza in at least two but less than half the regions of the state, with recent laboratory evidence of influenza in those regions
WIDESPREAD​	Outbreaks of influenza or increases in ILI cases and recent laboratory-confirmed influenza in at least half the regions of the state, with recent laboratory evidence of influenza in the state

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United States

Influenza activity continued to decrease in the U.S. during week 20. Widespread activity was reported in one state (CT), while one state (UT), Puerto Rico and Guam reported regional activity. Local activity was reported by seven states and sporadic activity was reported by the District of Columbia and 37 states. Four states reported no influenza activity.[/lsvr_content_box]

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