STUDY OBJECTIVE: To characterize the epidemiological situa-tion of @entity5695 in @entity1 under one year of age in the Czech Republic in 1997-2013. MATERIAL AND METHODS: The study cohort consisted of @entity1 under one year of age with laboratory confirmed @entity5695 reported to the communicable disease system from 1997 to 2013. A total of 265 @entity5695 cases were reported in @entity1 under one year of age over the study period. Selected demographic data, need for hospitalization, and vaccination history were evaluated in the study cohort. RESULTS: @entity1 under one year of age have shown a steady upward trend in reported cases of @entity5695 since the 1990s. The reported incidence of @entity5695 in this age group was the lowest in 1998 (1.1/100 000 population) and the highest in 2013 (31.3/100 000). In 1997-2013, 265 @entity5695 cases were reported in @entity1 under one year of age, 128 females and 137 males, to the communicable disease system in the Czech Republic. Most of these @entity1 , nearly 77 %, developed @entity5695 within the first four months of life. Of the 265 @entity1 , 79 % were not vaccinated before the onset of the disease and 21 % were immunized with at least one dose of @entity5695 vaccine before developing the disease. As many as 75 % of the @entity1 with @entity5695 needed hospitalization. Most of them, nearly 81 %, were hospitalized with @entity5695 in the first four months of life and 90 % of them in the first six months of life. CONCLUSIONS: In 1997 - 2013, an upward trend was observed in @entity5695 cases in @entity1 under one year of age. Most @entity1 developed the disease within the first four months of life while not vaccinated against @entity5695 . This fact unambiguously supports the "cocoon" strategy, i.e. vaccination of the closest contacts of the @entity1 , and a booster dose at 25 years of age. At the same time, a question arises whether to provide vaccination to pregnant @entity1 .Key words: @entity5695 in @entity1 under one year of age - incidence - mortality - hospitalization - vaccination.

[Pertussis trend in XXXX under one year of age in the Czech Republic in 1997-2013].

@entity1 :: ('9606', 'Species') :: ['women', 'children', 'Children', 'child'] @entity5695 :: ('MESH:D014917', 'Disease') :: ['pertussis']
@entity1 :: (9606,Species) :: ['children']
