GRANT COUNTY, Wash.--Grant County had four confirmed cases of whooping cough and 18 other cases linked to whooping cough in July.
The Grant County Health Officer recommended antibiotics for at least 210 people who came in close contact with the sick patients in Mattawa and Quincy.
Officials said the outbreak was among migrant farm workers in Mattawa.
"The farm where the farm workers are being housed and the Mattawa Community Clinic have been extremely cooperative and responsive," said Grant County Health Director Jeff Ketchel.
Symptomatic (coughing) people associated with this outbreak were living in Grant, Adams and Franklin counties.
Whooping cough is a vaccine preventable disease. A typical case of whooping cough, or pertussis, starts with a cough and runny nose followed by rapid coughing fits that sometimes ends with a whooping sound.