Spread and extent of the outbreak (information as at 5pm on 5 December) The NPHS influenza surveillance scheme, which records reports of diagnoses of flu from more than 300 GP practices across Wales, shows that the rate of influenza consultation remains stable. Further detail can be found on the NPHS website

Infection with the H1N1 virus, or swine flu, causes more life-threatening complications than seasonal flu in children with sickle cell disease, according to research from Johns Hopkins Children’s Center. The findings, to be presented on Dec. 7 at the annual meeting of the American Society of Hematology, warn parents and caregivers that such children are more likely to need emergency treatment and stays in an intensive-care unit..

A new study from researchers at the UK Medical Research Council and the Harvard School of Public Health (HSPH) projects that the severity of the H1N1 flu during the autumn-winter flu season in the U.S. will likely be less than previously feared.

In fatal cases of 2009 H1N1 influenza, the virus can damage cells throughout the respiratory airway, much like the viruses that caused the 1918 and 1957 influenza pandemics, report researchers from the National Institutes of Health (NIH) and the New York City Office of Chief Medical Examiner. The scientists reviewed autopsy reports, hospital records and other clinical data from 34 people who died of 2009 H1N1 influenza infection between May 15 and July 9, 2009

Two cats from different households in Colorado have tested positive for H1N1, according to Colorado State University’s Veterinary Diagnostic Laboratory. The felines are expected to recover, but their cases serve as a reminder to pet owners to seek veterinary attention for companion animals that appear to be ill