The Grant County Health District is investigating three confirmed cases of whooping cough (pertussis) and another 210 who may have been exposed to infected individuals.
The outbreak has been contained to migrant farm workers near Mattawa and Quincy, and so far no one has been hospitalized.
“Because a large number of exposed and ill individuals in a very well-defined area, we are considering this a local outbreak,” said Grant County Health Officer Alexander Brzezny.
In an effort to control the spread of the disease, GCHD distributed antibiotics for all 210 individuals who came in close contact with the ill individuals. The pertussis (Tdap) shot is also being offered to all the workers to reduce a chance of future infection.