UPDATE: CDC Update as of May 13, 2009, 11:00 AM ET
A New Virus Emerges
Novel influenza A (H1N1) is a new flu virus of swine origin that was first detected in April, 2009. The virus is infecting people and is spreading from person-to-person, and has sparked a growing outbreak of illness in the United States with an increasing number of cases being reported internationally as well.
CDC anticipates that there will be more cases, more hospitalizations and more deaths associated with this new virus in the coming days and weeks because the population has little to no immunity against it. Novel influenza A (H1N1) activity is now being detected in two of CDC’s routine influenza surveillance systems as reported in the May 8, 2009 FluView. FluView is a weekly report that tracks U.S. influenza activity through multiple systems across five categories.
The May 8 FluView found that the number of people visiting their doctors with influenza-like-illness is higher than expected in the United States for this time of year. Second, laboratory data shows that regular seasonal influenza A (H1N1), (H3N2) and influenza B viruses are still circulating in the United States, but novel influenza A (H1N1) and “unsubtypable”* viruses now account for a significant number of the viruses detected in the United States.
It’s thought that novel influenza A (H1N1) flu spreads in the same way that regular seasonal influenza viruses spread; mainly through the coughs and sneezes of people who are sick with the virus.
CDC continues to take aggressive action to respond to the outbreak. CDC’s response goals are to reduce the spread and severity of illness, and to provide information to help health care providers, public health officials and the public address the challenges posed by this new public health threat.
Learn More >>
*Unsubtypable viruses are viruses that through normal testing cannot be subtyped as regularly occurring human seasonal influenza viruses. In the context of the current outbreak, it’s likely that most of these unsubtypable viruses are novel H1N1.
Alabama 9
Arizona 187
California 221
Colorado 44
Connecticut 33
Delaware 54
Florida 58
Georgia 8
Hawaii 6
Idaho 3
Illinois 592
Indiana 70
Iowa 55
Kansas 23
Kentucky** 10
Louisiana 33
Maine 6
Maryland 23
Massachusetts 107
Michigan 134
Minnesota 31
Missouri 18
Montana 1
Nebraska 21
Nevada 21
New Hampshire 17
New Jersey 8
New Mexico 44
New York 211
North Carolina 12
Ohio 11
Oklahoma 22
Oregon 74
Pennsylvania 22
Rhode Island 7
South Carolina 32
South Dakota 3
Tennessee 57
Texas 293 2
Utah 72
Vermont 1
Virginia 17
Washington 176 1
Washington, D.C. 9
Wisconsin 496
TOTAL*(45) 3352 cases 3 deaths
A New Virus Emerges
Novel influenza A (H1N1) is a new flu virus of swine origin that was first detected in April, 2009. The virus is infecting people and is spreading from person-to-person, and has sparked a growing outbreak of illness in the United States with an increasing number of cases being reported internationally as well.CDC anticipates that there will be more cases, more hospitalizations and more deaths associated with this new virus in the coming days and weeks because the population has little to no immunity against it. Novel influenza A (H1N1) activity is now being detected in two of CDC’s routine influenza surveillance systems as reported in the May 8, 2009 FluView. FluView is a weekly report that tracks U.S. influenza activity through multiple systems across five categories.
The May 8 FluView found that the number of people visiting their doctors with influenza-like-illness is higher than expected in the United States for this time of year. Second, laboratory data shows that regular seasonal influenza A (H1N1), (H3N2) and influenza B viruses are still circulating in the United States, but novel influenza A (H1N1) and “unsubtypable”* viruses now account for a significant number of the viruses detected in the United States.
It’s thought that novel influenza A (H1N1) flu spreads in the same way that regular seasonal influenza viruses spread; mainly through the coughs and sneezes of people who are sick with the virus.
CDC continues to take aggressive action to respond to the outbreak. CDC’s response goals are to reduce the spread and severity of illness, and to provide information to help health care providers, public health officials and the public address the challenges posed by this new public health threat.
Learn More >>
*Unsubtypable viruses are viruses that through normal testing cannot be subtyped as regularly occurring human seasonal influenza viruses. In the context of the current outbreak, it’s likely that most of these unsubtypable viruses are novel H1N1.
Alabama 9
Arizona 187
California 221
Colorado 44
Connecticut 33
Delaware 54
Florida 58
Georgia 8
Hawaii 6
Idaho 3
Illinois 592
Indiana 70
Iowa 55
Kansas 23
Kentucky** 10
Louisiana 33
Maine 6
Maryland 23
Massachusetts 107
Michigan 134
Minnesota 31
Missouri 18
Montana 1
Nebraska 21
Nevada 21
New Hampshire 17
New Jersey 8
New Mexico 44
New York 211
North Carolina 12
Ohio 11
Oklahoma 22
Oregon 74
Pennsylvania 22
Rhode Island 7
South Carolina 32
South Dakota 3
Tennessee 57
Texas 293 2
Utah 72
Vermont 1
Virginia 17
Washington 176 1
Washington, D.C. 9
Wisconsin 496
TOTAL*(45) 3352 cases 3 deaths
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