Federal public health officials are turning to wastewater surveillance to help fill in the gaps in efforts to track H5N1 bird ...
As has happened throughout the course of the COVID-19 pandemic, new variants of the virus have emerged. Here's what to know about FLiRT and symptoms.
The virus behind COVID-19 has mutated again, this time producing variants nicknamed FLiRT, the U.S. Centers for Disease Control and Prevention (CDC) has reported.