Chelan-Douglas Health District
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Current Topics


Flu Season is in full swing and all indicators show an increase in the number of cases and hospitalizations across the state and locally in Chelan and Douglas counties. Information on the 2016-17 flu season, prevention, and what to do if you get the flu is on our Flu webpage.


There is an outbreak of mumps disease currently happening in Washington. There are cases in King, Pierce, Spokane, and Yakima counties. Information on mumps, how to prevent mumps, the mumps vaccine, and what to do if you think you have mumps can be found on our Mumps webpage.


Botulism is a serious illness caused by a nerve toxin made by the bacterium, Clostridium botulinum (C. botulinum). A toxin is a poison that is released by some bacteria. There are three types of botulism: food, wound and infant botulism. Eating food that has the botulism toxin causes food-borne botulism. It often involves improperly processed home canned foods. Wound botulism occurs when C. botulinum spores contaminate a wound and produce toxin. Botulism in infants under one year of age has been associated with ingestion of C. botulinum spores from the environment or specific foods such as honey.

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El botulismo es una intoxicación alimentaria ocasionada por una toxina producida por las bacteria Clostrydium botulinum. Sólo existen informes de unos pocos casos por año en el Estado de Nueva York.

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Hepatitis C virus

Legionellosis (Legionnaires' disease)

Locally, we had 10 hospitalized cases of Legionnaires’ Disease in the recent past. This bacterial infection kills about 10% of the people who get it. Because Legionella bacteria grow in warm water conditions there may be facilities within your area that should be made aware of this recent information from the Centers for Disease Control and Prevention. It is very important that everyone complete the “Identifying Buildings at Increased Risk” 8 point questionnaire, on page 2 of the toolkit, to determine if their facility needs a water management plan to reduce the risk of Legionella growth and spread. Read more . . .

Information on Legionellosis is also available on the Wisconsin Division of Public Health website:


Pertussis (Whooping Cough)

In 2012, 48,277 cases of pertussis (whooping cough) were reported in the U.S., but many more go undiagnosed and unreported. This is the most number of cases reported in the U.S. since 1955 when 62,786 cases were reported.


Salmonella and Backyard Flocks

An increasing number of people around the country are choosing to keep live poultry, such as chickens or ducks, as part of a greener, healthier lifestyle. While you enjoy the benefits of backyard chickens and other poultry, it is important to consider the risk of illness, especially for children, which can result from handling live poultry or anything in the area where they live and roam.


Meet Anne-Marie and Scarlett, mother and daughter who keep backyard poultry as a hobby.


Zika Virus



Zika virus is spread to people through mosquito bites. The most common symptoms of Zika virus disease are fever, rash, joint pain, and conjunctivitis (red eyes). The illness is usually mild with symptoms lasting from several days to a week. Severe disease requiring hospitalization is uncommon. In May 2015, the Pan American Health Organization (PAHO) issued an alert regarding the first confirmed Zika virus infection in Brazil. The outbreak in Brazil led to reports of Guillain-Barré syndrome and pregnant women giving birth to babies with birth defects and poor pregnancy outcomes. In response, CDC has issued travel notices for people traveling to regions and certain countries where Zika virus transmission is ongoing.

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El virus del Zika se transmite a las personas a través de las picaduras de mosquitos. Los síntomas más comunes de la enfermedad por el virus del Zika son fiebre, sarpullido, dolor en las articulaciones y conjuntivitis (ojos enrojecidos). La enfermedad por lo general es leve y presenta síntomas que duran desde varios días hasta una semana. Son raros los casos de enfermedad grave que requieran que el paciente sea hospitalizado. En mayo del 2015, la Organización Panamericana de la Salud (OPS) emitió una alerta con relación al primer caso confirmado de infección por el virus del Zika en Brasil. El brote en Brasil produjo reportes de casos del síndrome de Guillain-Barré y de mujeres embarazadas que dieron a luz bebés con defectos de nacimiento y que tuvieron problemas durante el embarazo. Como respuesta a esto, los CDC han emitido una alerta para viajeros (nivel 2, intensifique las precauciones) dirigida a personas que viajen a regiones y a ciertos países donde hay transmisión del virus del Zika.

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More resources from the CDC website:

Water Illnesses