in accordance with previous studies, the start and end dates of influenza seasons were defined as the first and last occurrences of 2 consecutive weeks with positive findings for at least 5% of weekly influenza isolates tested. post鈥搃nfluenza seasons were defined as july 1 to september 30 ...
The 2022-23 influenza season was characterized by an early start, reaching 1000 hospital admissions nationally before October 2022. A sharp increase nationally through October and November led to a peak of 26,600 hospital admissions in early December. Hospital admissions decreased rapidly after December...
The text messages were sent using a staggered start with 2 dates per cohort to avoid excessive volume on 1 particular Saturday: parents of those aged 6 to 23 months starting in early October 2010; those aged 2 years to less than 5 years in mid-October; and those aged 5 to 18 years ...
and remained >10% for at least two consecutive weeks. The duration of an epidemic season was defined as the number of weeks between the start and the end of an influenza epidemic period. In the 2019–2020 influenza season, the epidemic period started on the 47th week in Southern China and...
Dan Liang6, Yan-Ming Ye2, Guo-Jing Yang3,4,5, Yang Liu6* and Jiming Liu7* Abstract Background: In China since the first human infection of avian influenza A (H7N9) virus was identified in 2013, it has caused serious public health concerns due to its wide spread and high mortality ra...
The hypothetical study must also be large; as approximately 10% of the general adult population and a larger percent of children will experience an influenza virus infection in any given season [refs.]. A subset of those who are infected will go on to develop LRTI and a further subset will...
Start and end date of the Influenzanet data collection campaign in the 2011/2012 season. Influenzanet country Surveillance start date Surveillance end date Belgium (BE) Novem...
Methods Prior to and early in the 2017 and 2018 influenza seasons, we enrolled pregnant women aged > 18 years with expected delivery dates > 8 weeks after the start of the season. We contacted women twice weekly until end of pregnancy to identify illnesses with myalgia, cough, runny nose, ...
Early and Unexpectedly Severe Start of Influenza Epidemic in the Czech Republic during Influenza Season 2012–13. Eurosurveillance 2013, 18, 20396. [Google Scholar] [CrossRef] [PubMed] Holmes, E.C.; Ghedin, E.; Miller, N.; Taylor, J.; Bao, Y. Whole-genome analysis of human influenza ...
this survey was distributed in February 2016 and received responses through the end of March 2016. The second survey took place after the aforementioned changes to distribution were implemented for the 2016–2017 influenza season; this iteration was distributed in March 2017 and continued until May ...