WebMD Medical News Daniel J. DeNoon Laura J. Martin, MD Sept. 2,
2011 -- Two U.S. kids -- an Indiana boy and a Pennsylvania girl
-- are the first human cases of a new swine flu bug. Both kids
fully recovered after suffering usual flu symptoms. The two
children had no contact with each other. Each caught the new flu
in separate transmission events. The boy's case was reported on
Aug. 17; the girl's on Aug. 24. "We have been able to detect a
novel flu virus," CDC spokesman Tom Skinner tells WebMD. "It is
an H3N2 swine flu virus that has picked up a gene from 2009
H1N1. We are investigating whether human-to-human spread is
occurring." Human-to-human spread appears possible, as the boy
seems to have been infected by a caretaker who had contact with
pigs. But so far there's no evidence of sustained person-to-
person spread. A preliminary investigation in Indiana found no
spread of the virus beyond the infected boy. This is far from
the first time humans may have caught swine flu viruses directly
from pigs. The CDC