Provider Resources WA

03/19/26 Provider Alert: Legionella cases increasing in Chelan County

| March 19, 2026
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Chelan-Douglas Health District continues to see higher-than-usual reports of Legionella disease in our community. Legionella is a waterborne bacterium that can cause a severe form of pneumonia and a milder flu-like illness. Early recognition and prompt reporting are critical to prevent additional cases and to aid in identifying environmental sources. Legionella must be reported to … 03/19/26 Provider Alert: Legionella cases increasing in Chelan County

03/16/26 Provider Alert: respiratory syncytial virus (RSV) season has been extended through April 30, 2026

| March 16, 2026
Infant sleeping on adult's chest.

The respiratory syncytial virus (RSV) season has been extended through April 30, 2026. Please continue to administer nirsevimab or clesrovimab to all eligible patients through April 30th. Current Situation RSV activity in Washington began later than usual this season, with emergency department visits in the state reaching the activity threshold in December 2025, compared to … 03/16/26 Provider Alert: respiratory syncytial virus (RSV) season has been extended through April 30, 2026

The West Coast Health Alliance continues to recommend vaccination in alignment with the American Academy of Pediatrics Recommended Child and Adolescent Immunization Schedule

| January 6, 2026
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Summary The West Coast Health Alliance (WCHA) continues to recommend the American Academy Pediatrics (AAP) Recommended Child and Adolescent Immunization Schedule. Background On January 5, 2026, the Acting Director of the Centers for Disease Control and Prevention signed a decision memorandum to revise the Child and Adolescent Immunization Schedule and significantly reduce the number of vaccinations routinely … The West Coast Health Alliance continues to recommend vaccination in alignment with the American Academy of Pediatrics Recommended Child and Adolescent Immunization Schedule

West Coast Health Alliance, WA DOH, and Leading National Medical Organizations Continue to Recommend Hepatitis B Vaccination for Newborns

| December 8, 2025

WCHA disagrees with CDC’s Advisory Committee’s change to decades-long vaccine recommendation that has reduced pediatric hepatitis B infections by 99 percent. The West Coast Health Alliance (WCHA) strongly supports that hepatitis B vaccination continue to be routinely offered to all newborns, with the first dose of the vaccine given within 24 hours of birth for … West Coast Health Alliance, WA DOH, and Leading National Medical Organizations Continue to Recommend Hepatitis B Vaccination for Newborns

West Coast Health Alliance, WA DOH, and Leading National Medical Organizations Continue to Recommend Hepatitis B Vaccination for Newborns

| December 8, 2025
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WCHA disagrees with CDC’s Advisory Committee’s change to decades-long vaccine recommendation that has reduced pediatric hepatitis B infections by 99 percent. The West Coast Health Alliance (WCHA) strongly supports that hepatitis B vaccination continue to be routinely offered to all newborns, with the first dose of the vaccine given within 24 hours of birth for … West Coast Health Alliance, WA DOH, and Leading National Medical Organizations Continue to Recommend Hepatitis B Vaccination for Newborns

11/24/25 Health News: Statement Regarding Vaccines and Autism

| November 24, 2025
Typewriter with "News" typed on paper.

On November 21 the Department of Health and the West Coast Health Alliance issued statements regarding vaccines and autism. In short, vaccines are thoroughly tested and remain one of the most important tools we have for preventing infectious diseases. They represent one of the greatest public health achievements in history, having saved millions of lives … 11/24/25 Health News: Statement Regarding Vaccines and Autism

11/20/25 Provider Alert: Case of H5N5 Influenza Confirmed in Washington

| November 20, 2025
Flock of chickens

Current Situation On November 13, 2025, a Washington resident who has been hospitalized with respiratory illness symptoms since early November tested positive for influenza A H5, a type of avian influenza. Subsequent sequencing confirmed the patient was infected with H5N5 influenza virus. To our knowledge, this is the first known human case of H5N5. The … 11/20/25 Provider Alert: Case of H5N5 Influenza Confirmed in Washington

11/13/25: Health Alert: Infant Botulism Associated with ByHeart Infant Formula

| November 13, 2025
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Summary Actions Requested Background Infant botulism is a rare illness where spores of Clostridium botulinum bacteria colonize and grow in an infant’s large intestine. These bacteria release a neurotoxin that causes symptoms like constipation, weakness (especially in sucking, crying, and swallowing), and loss of muscle tone. If untreated, the condition can lead to paralysis, trouble … 11/13/25: Health Alert: Infant Botulism Associated with ByHeart Infant Formula

08/06/25 Health Advisory: Possible case of locally acquired malaria in Pierce County

| August 6, 2025
mosquito on skin

Summary: Though the risk remains low, be vigilant for possible cases of malaria and act urgently to diagnose and treat. An East Pierce County woman who has not traveled recently was diagnosed with malaria Aug. 2. Tacoma-Pierce County Health Department is working with Washington State Department of Health (DOH) and Centers for Disease Control and … 08/06/25 Health Advisory: Possible case of locally acquired malaria in Pierce County

7/30/25 Provider Alert: Chagas Disease Screening Recommendations in Washington  

| July 30, 2025
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Summary: Screen patients for Chagas disease if they have a history of residence in or prolonged travel to Mexico, Central, or South America. Chagas disease is a vector-borne parasitic disease which, if left untreated, can lead to chronic cardiac and gastrointestinal symptoms, adverse pregnancy outcomes, and/or congenital Chagas disease in infants. Current Situation The Washington State … 7/30/25 Provider Alert: Chagas Disease Screening Recommendations in Washington