Pertussis infections and vaccinations in Bolivia, Brazil and Mexico from 1980 to 2009

McCormick, Colleen M.; Czachor, John S.

doi:10.1016/j.tmaid.2013.04.002

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The outbreaks observed in 2004 and 2007 occurred in the period in which children vaccination coverage was less than 90% in the State while Brazilian rates have remained at approximately 80% for children aged 1–12. 14 The improvement of the epidemiological surveillance system may also explain the detection of the outbreaks.…”

Section: Discussionmentioning

confidence: 99%

Pertussis in the central-west region of Brazil: one decade study

Druzian

Brustoloni

Oliveira

et al. 2014

The Brazilian Journal of Infectious Diseases

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In many parts of the world, numerous outbreaks of pertussis have been described despite high vaccination coverage. In this article we report the epidemiological characteristics of pertussis in Brazil using a Surveillance Worksheet. Secondary data of pertussis case investigations reported from January 1999 to December 2008 recorded in the Information System for Notifiable Diseases (SINAN) and the Central Laboratory for Public Health (LACEN-MS) were utilized. The total of 561 suspected cases were reported and 238 (42.4%) of these were confirmed, mainly in children under six months (61.8%) and with incomplete immunization (56.3%). Two outbreaks were detected. Mortality rate ranged from 2.56% to 11.11%. The occurrence of outbreaks and the poor performance of cultures for confirming diagnosis are problems which need to be addressed. High vaccination coverage is certainly a good strategy to reduce the number of cases and to reduce the impact of the disease in children younger than six months.

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Section: Discussionmentioning

confidence: 99%

Pertussis in the central-west region of Brazil: one decade study

Druzian

Brustoloni

Oliveira

et al. 2014

The Brazilian Journal of Infectious Diseases

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“…We also have state-level yearly incidence data between 1990 and 2007 broken down by age groups of 5–10 years (<1, 1–4, 5–14, 15–24, 25–44, 44–64, ⩾65 years) for all the infections, except for measles for which no age-structured data is available. Widespread vaccination for measles and pertussis began around 1991, and reached relatively high levels of coverage [27, 28]. The MMR vaccine was introduced in 1998 and supplanted the monovalent measles vaccine [27].…”

Section: Methodsmentioning

confidence: 99%

Comparative dynamics, seasonality in transmission, and predictability of childhood infections in Mexico

2016

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The seasonality and periodicity of infections, and the mechanisms underlying observed dynamics, can have implications for control efforts. This is particularly true for acute childhood infections. Among these, the dynamics of measles is the best understood and has been extensively studied, most notably in the UK prior to the start of vaccination. Less is known about the dynamics of other childhood diseases, particularly outside Europe and the US. In this paper, we leverage a unique dataset to examine the epidemiology of six childhood infections - measles, mumps, rubella, varicella, scarlet fever and pertussis - across 32 states in Mexico from 1985 to 2007. This dataset provides us with a spatiotemporal probe into the dynamics of six common childhood infections, and allows us to compare them in the same setting over the same time period. We examine three key epidemiological characteristics of these infections – the age profile of infections, spatiotemporal dynamics, and seasonality in transmission - and compare with predictions from existing theory and past findings. Our analysis reveals interesting epidemiological differences between the six pathogens, and variations across space. We find signatures of term time forcing (reduced transmission during the summer) for measles, mumps, rubella, varicella, and scarlet fever; for pertussis, a lack of term time forcing could not be rejected.

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Pertussis Vaccines

Edwards¹,

Decker²

2018

Plotkin's Vaccines

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Pertussis infections and vaccinations in Bolivia, Brazil and Mexico from 1980 to 2009

Cited by 4 publications

References 10 publications

Pertussis in the central-west region of Brazil: one decade study

Pertussis in the central-west region of Brazil: one decade study

Comparative dynamics, seasonality in transmission, and predictability of childhood infections in Mexico

Pertussis Vaccines

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