Efforts to grow the vaccine virus in cells rather than eggs are currently under way and there is consideration of the addition to influenza vaccine of immune-stimulating adjuvants to be used in certain groups of individuals.

The following guidance on the use of influenza antiviral drugs for the prevention and control of influenza during the 2010-2011 season has been submitted to the Morbidity and Mortality Weekly Report (MMWR) and will appear in that publication at a later date.

A new commentary by researchers at the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health, explores the 1510 pandemic and what we have learned since then about preventing, controlling and treating influenza.

Secondary infections with bacteria such as Streptococcus pneumoniae, which causes pneumonia, were a major cause of death during the 1918 flu pandemic and may be important in modern pandemics as well.