Upon production of a sufficient bacterial load, flu-like symptoms occur followed by sudden onset of respiratory distress, progressive shock, and death.
It takes from February through to August/September to produce sufficient quantities of the flu vaccine.
Recent news on H5N1 variants capable of efficient aerosol transmission in ferrets, however, suggest that a few mutations may be sufficient to render bird flu highly transmissible in ferrets and possibly humans [ 8, 9].
Most (69.3%, 575/830) respondents thought that "health authorities had provided sufficient information on swine flu," 18.1% (150/830, including 12 who replied that they had not seen or heard any information) reported that there had not been enough information, 9.9% (82/830) reported that there had been too much information, and 2.8% (23/830) were unsure.
A government decision to delay this year's flu immunisation program until sufficient supplies were available may have contributed to the record level of cases.
However, 20 460 reads were Flu-derived, which was sufficient for subtype identification (H1N1 in sample #F2 and H3N2 in samples #F1 and #F3) from these sequences (Table S1).
The current egg-based processes present different drawbacks, such as the minimum period of six months required after the selection of the flu strain to generate a sufficient supply of the vaccines.
This information should be sufficient for users to detect when the annual flu epidemic period starts.
In nasopharyngeal samples, although whole genome analysis was not available because the majority (>90%) of reads were host genome derived, 20 460 Flu-reads were detected, which was sufficient for subtype identification.
Starting in July 1918, the Grand Fleet was affected by the 1918 flu pandemic; at one point, Princess Royal lacked sufficient healthy crewmen to sail.
