4th case of measles confirmed in Port Angeles

PORT ANGELES -- Officials on Friday confirmed a fourth case of measles in Port Angeles -- a 14-year-old boy who is the sibling of a 5-year-old girl who became infected earlier.

Officials said the boy was quarantined during his infectious period so he had no public contact.

The State of Washington Public Health Labroatory said earlier that a 43-year-old man tested positive for the measles. He is the third confirmed case of measles in the Clallam County.

The state Health Department says the second case -- the 5-year-old girl -- caught the measles at a Port Angeles clinic where the first case -- an infected 52-year-old man -- had been. The 43-year-old man was also in contact with the infected man, and has been quarantined since Feb. 5.

His infectious period occurred during his quarantine, state health officials said, so he has had no public contact. His cooperation with the quarantine was "key" in preventing further public exposure, officials said.

Two other suspected cases in Clallam County tested negative Thursday, health officials said. However, the county remains concerned and vigilant to additional cases of the virus.

Officials are still waiting the return of a Jefferson County sample tested for measles.

The 53-year-old man has since recovered, but the 5-year-old girl is still in quarantine. Students at her Olympic Christian School believed vulnerable to measles have also been quarantined at home as a precaution.