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A Highly Pathogenic #Avian #H7N9 #Influenza Virus Isolated from A #Human Is Lethal in Some #Ferrets Infected via #Respiratory #Droplets (Cell Host Microbe, abstract)

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19 May 2017

Weekly #US #Influenza #Surveillance #Report - 2016-17 Season, Wk 19 ending May 13, 2017 (@CDCgov, summary)


Title: Weekly #US #Influenza #Surveillance #Report - 2016-17 Season, Wk 19 ending May 13, 2017.

Subject: Human Influenza Viruses, seasonal winter epidemic in the US, weekly report.

Source: US Centers for Disease Control and Prevention (CDC), FluView, full page: (LINK). Summary.

Code: [     ]


Weekly U.S. Influenza Surveillance Report - 2016-2017 Influenza Season Week 19 ending May 13, 2017


Language: [ English (US) | EspaƱol ]


|-- Full report also available as PDF –|


All data are preliminary and may change as more reports are received.



    • During week 19 (May 7-13, 2017), influenza activity decreased in the United States.
  • Viral Surveillance:
    • The most frequently identified influenza virus type reported by public health laboratories during week 19 was influenza B.
    • The percentage of respiratory specimens testing positive for influenza in clinical laboratories decreased.
  • Pneumonia and Influenza Mortality:
    • The proportion of deaths attributed to pneumonia and influenza (P&I) was below the system-specific epidemic threshold in the National Center for Health Statistics (NCHS) Mortality Surveillance System.
  • Influenza-associated Pediatric Deaths:
    • One influenza-associated pediatric death was reported.
  • Influenza-associated Hospitalizations:
    • A cumulative rate for the season of 64.7 laboratory-confirmed influenza-associated hospitalizations per 100,000 population was reported.
  • Outpatient Illness Surveillance:
    • The proportion of outpatient visits for influenza-like illness (ILI) was 1.3%, which is below the national baseline of 2.2%.
    • All ten regions reported ILI below their region-specific baseline levels.
    • One state experienced low ILI activity; New York City, Puerto Rico, and 47 states experienced minimal ILI activity; and the District of Columbia and two states had insufficient data.
  • Geographic Spread of Influenza:
    • The geographic spread of influenza in Guam and five states was reported as regional activity; Puerto Rico and eight states reported local activity; the District of Columbia and 36 states reported sporadic activity; and the U.S. Virgin Islands and one state reported no activity.




Keywords: US CDC; USA; Updates; Seasonal Influenza.