NIAID/Flickr cc
Though deadly anaphylaxis had been considered a theoretical outcome of the allergy, it had not yet been seen until this case.
Early data from the UK and Japan show that the H3N2 subclade K was represented in 90% of flu samples.
Previous human detections in the US have involved the H5N1 strain.
Nine cases have been confirmed and 17 are suspected.
Ethiopian health authorities are ramping up their response and conducting lab tests to identify the cause of the infection and stop further transmission.
If confirmed, it will be the first human bird flu case in the US since February.
Infants in 10 states have been sickened, and all required hospitalization.
Canada had eliminated measles in 1998, 2 years prior to the United States.
The rate was quadruple in those 75 and older, but those findings demonstrate less statistical power.
At eight months of follow-up, Jynneos recipients not vaccinated against smallpox had lower binding antibody concentrations than those with infection.
