The phrase "a decrease in influenza" is correct and usable in written English.
It can be used when discussing trends or changes in the incidence or prevalence of influenza cases.
Example: "The public health measures implemented last year resulted in a significant decrease in influenza cases during the winter season."
Alternatives: "a reduction in influenza" or "a decline in influenza".
Los Angeles County health officials reported that they have also noted a decrease in influenza activity "suggesting that the peak of flu season has passed". The state is investigating an additional 41 cases, which are likely to be confirmed in coming days.
In addition, we observed a decrease in influenza virus replication and an increased survival of influenza virus-infected mice.
Administrative data showed no significant change between 2005 and 2006 for Pap smears (p = 0.52) or mammography (p = 0.48); there was a decrease in influenza vaccination (p < 0.0001) and an increase in fecal occult blood testing (p < 0.0001).
The monitoring of influenza epidemics by the Swiss Federal Office of Public Health (SFOPH) does not suggest a decrease in influenza between 1992 and 2001, which might have confounded our findings, but indicates random fluctuations between years (SFOPH 2001).
Rather, CDC divides that United States into nine regions, and seven have seen a decrease in influenza-like illness (ILI) over the past few weeks.
Evaluation of the anti-virus effect showed that cells treated with 32 128 units of 3D8 scFv showed a 50% decrease in influenza replication compared to untreated cells.
On the basis of our model projections, the introduction of a routine childhood influenza vaccination programme assuming 50%% coverage and use of LAIV could lead to a significant decrease in influenza infections resulting in decreased morbidity and mortality across all age groups, reduced hospitalisation rates and antibiotic use as well as less sickness-related absence from work.
Earlier, 2 randomised clinical trials [ 5, 6] disclosed reductions in overall mortality and influenza-like illness (ILI) among elderly patients after HCW vaccination without a decrease in laboratory-confirmed influenza.
Clearly, there will be a decrease in the absolute influenza mortality figure (number of fatalities) during the drift phase because as time passes the overall population immunity level increases.
However, this study also demonstrates a decrease in laboratory-confirmed influenza as a result of an intensive hand hygiene campaign.
Vaccine effectiveness has resulted in a measurable difference in influenza burden, for example: when comparing disease burden before and after introduction of a mass vaccination campaigns in the elderly in Brazil, researchers found a 26% decrease in influenza-related mortality.
