At his 6-month follow up, the dose of colchicine had to be increased (2 g/day) due to an increased attack rate (5 attacks per 6 months) despite the regular use of drugs.
When many other food items eaten on the day including pork-fried rice and a variety of fish dishes were analysed none of which showed an increased attack rate or was significant in the cohort analysis.
In our transmission experiments, an obviously shorter survival period (458 ± 11 dpi) and an increased attack rate (100%) were observed in PoPrP-Tg001 mice inoculated with sheep BSE (Table) compared with those inoculated with the original cattle BSE (>650 dpi, 19%).
In particular, the authors find that the reduced rate and increased average effect of antigenic mutations may contribute to the linear shape of the influenza tree and to increased attack rates.
A previous study showed that increasing the duration of school closures reduced the attack rate of infections in a county population and that limiting the duration to two weeks or less when virus was still circulating was associated with increased attack rates [ 8].
There is a trade-off for the predator between prey consumption and mortality: increasing the value of trait y increases the attack rate, f x, y), and simultaneously leads to higher predator mortality.
However one highly plausible reason for the increased secondary attack rate observed in this study was due to voluntary isolation of cases and quarantine of household contacts.
Including HAI testing increased the attack rate for all age groups and all types of influenza.
Reduced compliance increased the attack rate in Albany as those children affected made additional daytime contacts with other children.
