A Utah man who became the first person in the continental US to die after being infected with the Zika virus passed it to a caregiver, creating a medical mystery about how it spread between them, health officials said today.
The two people did not have sexual contact and the type of mosquito that mainly spreads the virus is not found in the high-altitude area where they live, the Salt Lake County Health Department said.
The caregiver is a "family contact" and has fully recovered, but officials did not give further details, including how the virus was transmitted.
"Our knowledge of this virus continues to evolve and our investigation is expected to help us better understand how this individual became infected," said Angela Dunn, deputy state epidemiologist at the Utah Department of Health. "Based on what we know so far about this case, there is no evidence that there is any risk of Zika virus transmission among the general public in Utah."
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