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Influenza in Los Angeles County

Influenza,Flu

Photo from the Centers for Disease Control.


Also see:
-- Notifiable Communicable Diseases & Conditions - Los Angeles County
-- When Los Angeles Last Faced a Pandemic.



Flu Season* Positive Flu Tests Influenza-Related Deaths
Total Deaths Pediatric Deaths
2021-2022 (through 6/18/2022) 5,001 14 0
2020-2021** 206 5 0
2019-2020†† 15,489 62 2
2018-2019 6,429 125 2
2017-2018 12,429 289 2
2016-2017 6,855 77 1
2015-2016 6,702 70 3
2014-2015 5,752 54 3
2013-2014 3,953 105 4
2012-2013 3,163 69 7
2011-2010 1,149 21 2
2010-2011 2,122 34 3

* Generally from September through April of the following year.
† This number represents only those tested at specified Los Angeles County influenza surveillance labs and whose results are positive.
‡ Ages 0-17
** The dramatic drop-off in reported influenza cases during this period was attributed to widespread public health practices in response to the COVID-19 pandemic, such as requirements for face coverings, social distancing, closures, etc.
†† Official summary numbers had not been provided for the end of this season, due to public health staff's rapid consumption with COVID-19 data. Numbers presented here are cumulative tallies of weekly influenza reports for the season through Mar. 21, 2020.

Source: Acute Communicable Disease Control, Los Angeles County Department of Public Health


Red Cross Motor Squads in St. Louis drill to meet the Influenza Epidemic, 1918
Los Angeles once faced a horrific influenza outbreak.