U.S. swine flu cases now total 8: CDC
WASHINGTON (Reuters) - A strange new strain of flu that may have killed as many as 60 people in Mexico has also sickened eight people in the United States, the U.S. Centers for Disease Control and Prevention said on Friday.
"Our concern has grown as of yesterday," CDC acting director Dr. Richard Besser told reporters in a telephone briefing.
"We do not have enough info to fully assess the health threat posed by this new swine flu virus." He said 7 of 14 Mexican samples had tested positive for the new and unusual strain of H1N1 swine flu.
(Reporting by Maggie Fox, editing by Patricia Zengerle)
