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The spruce tree on the right shows signs of aphid damage.

Aphids, like the ones seen here, have damaged Sitka spruce trees on the North Coast.

One-year-old Abel Zhang receives the last of three inoculations, including a vaccine for measles, mumps and rubella (MMR), at the Internationa…

Washington state lawmakers have advanced a measure that would remove parents’ ability to claim a personal or philosophical exemption to vaccinating their school-age children for measles as the Pacific Northwest struggles with an outbreak of the contagious virus.