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Two people in white lab coats work on a machine.

How lasers might help solve sex crimes

When potential DNA evidence — say, from a sexual assault case — is submitted to a forensic lab for analysis, the scientists are often faced with the time-consuming challenge of sorting out which DNA profile came from the victim and which came from the criminal.

A blue gloved hand rubs an alcohol wipe on an arm.

Measles outbreaks are back

In 2000, the United States declared that measles had been eliminated from the country. According to the Centers for Disease Control and Prevention, that means measles is no longer endemic — or constantly present — and there has been no continuous disease transmission for 12 months or more.

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