Centers for Disease Control and Prevention

The bat was sent to the CDC after it was found in a bag of Fresh Express Organic Marketside Spring Mix.

"The deteriorated condition of the bat did not allow for CDC to definitively rule out whether this bat had rabies," the Atlanta-based agency said.

The CDC said the risk of rabies transmission was extremely low but not zero, so the two people who ate salad mix were recommended for treatment as a precaution.

Researchers figured this out by looking at records of people who had a neurological disease called subacute sclerosing panencephalitis, or SSPE, in California between 1998 and 2016. The research was presented at IDWeek, an infectious-disease conference, in October.

SSPE is a neurological complication from measles in which, essentially, the body has an abnormal immune response to the virus.

Not only did male mice infected with the Zika virus have a tougher time getting females pregnant, their levels of sex hormones crashed, and their testicles shrunk by 90%, possibly permanently, according to new researchby the Washington University School of Medicine in St. Louis.

Of course, these are mice, not men.