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Communicable Disease and Immunization Updates

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Keeping providers informed of public health trends

Our staff provide information about important public health trends. One of the ways we do this is with our Communicable Disease and Immunization Update. This report has information on vaccination, outbreaks, emerging conditions and more.

Check out our latest issue

April 2019

  • Measles Outbreak
  • New Perinatal Hepatitis C Effort
  • Acute Flaccid Myelitis
  • Hepatitis A: Outbreaks & New Recommendations
  • Selected Notifiable Conditions Data

Check out our past issues

April 2017

  • Syphilis Update
  • Tuberculosis Screening Recommendations 
  • HPV Vaccine - New Recommendations

May 2016

  • Zika Virus Outbreak
  • Congenital Syphilis Update
  • Pertussis in Pierce County and Tdap During Pregnancy
  • Reported Cases of Selected Diseases

September 2015

  • Flu Season 2015-2016
  • Antibiotic Prescriptions for Diarrhea in Pierce County
  • Pre-Exposure Prophylaxis for HIV-PrEP
  • Reported Cases of Selected Diseases

March 2015

  • Tdap Recommendations for Pregnant Women
  • Acellular Pertussis Vaccine—Duration of Immunity
  • 2015 Measles Outbreak
  • Reported Cases of Selected Diseases for January 2015

September 2014

  • Flu Vaccine Recommendations 2014-2015
  • Chikungunya Virus
  • Ebola Hemorragic Fever Outbreak
  • 2014 Measles Update
  • Reported Cases of Selected Diseases for July 2014

October 2013

  • Preparing for the 2013–2014 Influenza Season
  • 2012–2013 Influenza Season Recap
  • Vibrio parahaemolyticus
  • Reported Cases of Selected Diseases for August 2013

August 2013

  • Middle East Respiratory Syndrome Coronavirus (MERS-CoV)
  • Chronic Hepatitis C Among Baby Boomers
  • H3N2v Influenza
  • August is National Immunization Awareness Month
  • Reported Cases of Selected Diseases for July 2013

October 2012

  • Pertussis Update
  • Preparing for the Influenza Season 2012-2013
  • Novel Influenza A Virus Associated with Swine
  • Reported Cases of Selected Notifiable Diseases

January 2012

  • STEC Infections
  • Pertussis Update
  • Immunization Educational Events and Trainings
  • Reported Cases of Selected Diseases--December 201

 

Related communicable disease articles for providers:

Influenza Update—Week 12

April 2, 2019

Data are preliminary.

Pierce County

Influenza activity remains elevated.

Hospitalizations

  • This season, 604 Pierce County residents have been hospitalized with lab-confirmed influenza.
  • The median age of hospitalized patients is 64 years (range 9 days to 97 years).

Deaths

  • Since Oct. 22, 2018, we identified 34 people who died with lab-confirmed influenza.
  • The median age of those who died is 73 years (range 36 to 97 years).
  • Five had no risk factor for influenza complications other than being older than 65 years.

Viruses

  • Of the 166 subtyped influenza A viruses from hospitalized patients, 92 (56%) were influenza A H3N2.
  • The proportion of positive influenza tests remains high.
  • Few cases of influenza B were identified.

Influenza-like illness

  • The proportion of visits to primary care for influenza-like illness (ILI) remains low.
  • The proportion of visits to emergency department (EDs) and urgent care for ILI remain elevated.

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

Pierce County influenza deaths

Age

Number of Deaths

0 to 4 years

0

5 to 17 years

0

18 to 49 years

4

50 to 64 years

7

65 years and older

23

Total

34

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

Washington

Influenza activity is elevated and widespread.

Deaths

  • This season, Washington Department of Health received notification of 139 people who died with lab-confirmed influenza.

Viruses

  • During week 12, 33.5% of commercial lab specimens tested positive for influenza.
  • Of the 44 influenza A viruses subtyped by public health labs, 34 (77%) were influenza A H3N2.

Influenza-like illness

  • The proportion of outpatient visits for ILI is above baseline.
  • Washington ILI activity is high.

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

United States

Influenza activity decreased during week 12 but remains elevated.

Deaths

  • This season, CDC received notification of 77 children who died with lab-confirmed influenza.
  • The proportion of deaths caused by pneumonia or influenza is above the epidemic threshold.

Viruses

  • During week 12, 68% of viruses subtyped by public health labs were influenza A H3N2.
  • Influenza A H3N2 predominates in all 10 Health and Human Services (HHS) Regions.
  • The proportion of influenza B viruses detected remains low.

Influenza-like illness

  • The proportion of outpatient visits for ILI is at or above HHS Regional baselines throughout the country.

Health alert

  • On March 28, 2018, CDC issued a health alert notifying clinicians that United States influenza activity remains high.
  • The proportion of influenza activity due to influenza A H3N2 is increasing.
  • Influenza A H3N2 is associated with severe disease in older adults.
  • Clinicians should have a high index of suspicion for influenza.
  • CDC recommends rapid antiviral treatment for high-risk patients with suspected influenza.

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

Graph of influenza data. For more information, call (253) 798-6410.

Influenza hospitalizations per 100,000 population,
2018-2019 influenza season, weeks 40 through 11

Age

Pierce County

United States

0 to 4 years

48.4

63.6

5 to 17 years

11.5

17.9

18 to 49 years

31.3

21.9

50 to 64 years

79.8

67.4

65 years and older

217.6

167.0

Total

64.8

52.5

References

Centers for Disease Control and Prevention. (2019). Weekly United States influenza surveillance report. 2018-2019 influenza season week 12 ending March 23, 2019. Retrieved March 29, 2019 from www.cdc.gov/flu/weekly.

Centers for Disease Control and Prevention. (March 28, 2019). Influenza season continues with an increase in influenza A(H3N2) activity. Retrieved March 28, 2019 from https://emergency.cdc.gov/han/han00419.asp.

Washington Department of Health. (2019). Washington influenza update. Week 12: March 17, 2019 - March 23, 2019. Retrieved April 1, 2019 from www.doh.wa.gov/DataandStatisticalReports/DiseasesandChronicConditions/CommunicableDiseaseSurveillanceData/InfluenzaSurveillanceData.

 

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