Severe and Widespread trH3N2 Raises Concerns
September 7, 2011
Two other individuals, confirmed ill over the weekend, are recovering.
The above comment from the September 5, 2011 Pennsylvania Department of Health press release regarding cases from Washington County raise concerns that one of the patients (9F), A/Pennsylvania/10/2011, has been “recovering” for more than six weeks.
Today the CDC released sequences from the three patients described in the above press release and one set of sequences came from a sample collected July 27, 2011. This collection date suggests this patient was infected well in advance of the August 13 start date of the Washington County Fair, raising concerns that trH3N2 infections are widespread and in the above case, severe.
These concerns were increased by the NA sequence,
A/Pennsylvania/09/2011, from a case (2F) from Schuylkill County, was at the fair on August 16. The sample tested was collected in August 20, 2011 and NA differences raise concerns that the patient was infected after she left the fair, and may have been infected in eastern Pennsylvania.
Moreover, the third sequence, A/Pennsylvania/11/2011, was collected August 25, five days after the end of the fair, suggesting this patient (also 9F) was also not infected at the fair.