February 24, 2009 Patient zero is said to be a 6-month-old girl from northern Mexico, according to Celia Alpuche of the Institute of Epidemiological Diagnosis and Reference in Mexico City. (Cohen J.

Italicized results reflect results accounting for an 11% per day increase in reporting fraction starting April 13. of different community mitigation strategies, and help to characterize the spread of ...

Six months later, Chan’s admonitions seem prescient. Rich countries’ hoards have become massive surpluses, and many nations are now trying frantically to cancel pending orders of vaccines or transfer ...

A new study of the strain of influenza A responsible for the 2009 H1N1 pandemic—pdm09—shows that the virus has passed from humans to swine about 370 times since 2009, and subsequent circulation in ...

H1N1, also called swine flu, is a type of influenza A virus that caused a pandemic in 2009/10 Those most affected by the disease were under the age of 65, in contrast to seasonal flu which mostly ...

According to Dr. Tom Frieden, Director of the CDC, there is widespread H1N1 activity in 46 states. H1N1 influenza continues to be a disease primarily involving children and young adults. "Many ...

Unofficial or informal sources (also called “rumors” or “unstructured data”) of emerging disease outbreaks such as media reports and firsthand accounts have become an important mechanism for detecting ...