February 06, 2015
Source/Centers for Disease Control and Prevention
This undated image from the Centers for Disease Control and Prevention shows an electron microscope image of a measles virus particle. Measles is considered one of the most infectious diseases in the world.
According to NBC Philadelphia, a physician reported that a 15-year-old boy might have the disease. Health officials are awaiting test results. If confirmed, it would be Pennsylvania's first case of measles since the California outbreak.
Meanwhile, the teen is quarantined at his home.
Officials have not revealed where the boy lives.
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