The mutation detected on the virus infecting a dairy farm worker in Texas has been recorded previously, the CDC said — and did not spark a major outbreak at that time. The change, in the PB2 ...
There are four subgroups of meningococcal bacteria that circulate in the US: B, C, W, and Y. The CDC said that ST-1466 is in subgroup Y. About 65 percent of cases have been in adults ages 30 to 60 ...