Related Experiment Video
Updated: Feb 8, 2026

A Method of Trigonometric Modelling of Seasonal Variation Demonstrated with Multiple Sclerosis Relapse Data
Published on: December 9, 2015
Virological Situation in Poland in the 2016/2017 Epidemic Season Based on Sentinel Data
K Cieślak1, K Szymański2, D Kowalczyk2
1Department of Influenza Research, National Influenza Center, National Institute of Public Health - National Institute of Hygiene, Warsaw, Poland. kcieslak@pzh.gov.pl.
Abstract:
The influenza Sentinel surveillance system is a source of valuable data about the dynamics of epidemic seasons in Poland. During the epidemic season 2016/2017, more than 1,000 samples were examined, of which 48% were positive for influenza diagnosis. The predominance of influenza A/H3N2/ was confirmed. Influenza B viruses were noted in only 1% of the samples tested. After the analysis in age groups, the highest number of positive samples was observed in the group of 26-44 years. Infections caused by influenza-like viruses were confirmed only in 3% of cases. The Sentinel surveillance system makes it possible to evaluate the spread of the influenza virus in each epidemic season.
Related Concept Videos
Seasoning of Wood
Achieving equilibrium moisture content is the goal of seasoning; this is the point where the wood's moisture content stabilizes to align with the moisture levels of the surrounding environment. Proper...
Biological Clocks and Seasonal Responses
How Data are Classified: Categorical Data
Data are classified based on whether they are measurable or not. Categorical data cannot be measured; instead, it can be divided into categories. For example, if Y denotes a person's party affiliation, some examples of Y include...
How Data are Classified: Numerical Data
Quantitative data may be either discrete or continuous. All quantitative data that take on only specific numerical...
Data Reporting and Recording
Data Validation
Key parameters for method validation include:

