Background: Vector control programs, which have focused mainly on the patient house and peridomestic areas around dengue cases, have not produced the expected impact on transmission. This project will evaluate the assumption that the endemic/epidemic transmission of dengue begins around peridomestic vicinities of the primary cases. Its objective is to assess the relationship between symptomatic dengue case exposure and peridomestic infection incidence.
Methods/design: A prospective cohort study will be conducted (in Tepalcingo and Axochiapan, in the state of Morelos, Mexico), using the state surveillance system for the detection of incident cases. Paired blood specimens will be collected from both the individuals who live with the incident cases and a sample of subjects residing within a 25-meter radius of such cases (exposed cohort), in order to measure dengue-specific antibodies. Other subjects will be selected from areas which have not presented any incident cases within 200 meters, during the two months preceding the sampling (non-exposed cohort). Symptomatic/asymptomatic incident infection will be considered as the dependent variable, exposure to confirmed dengue cases, as the principal variable, and the socio-demographic, environmental and socio-cultural conditions of the subjects, as additional explanatory variables.
Discussion: Results indicating a high infection rate among the exposed subjects would justify the application of peridomestic control measures and call for an evaluation of alternate causes for insufficient program impact. On the other hand, a low incidence of peridomestic-infected subjects would support the hypothesis that infection occurs outside the domicile, and would thus explain why the vector control measures applied in the past have exerted such a limited impact on cases incidence rates. The results of the present study may therefore serve to reassess site selection for interventions of this type.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3353184 | PMC |
| http://dx.doi.org/10.1186/1471-2458-12-262 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Epidemiological characteristics of elderly osteoporosis fractures and their association with air pollutants: a multi-center study in Hebei Province.
Sci Rep
December 2024
Hebei Provincial Key Laboratory of Orthopaedic Biomechanics, Hebei Orthopaedic Research Institute, No. 139 Ziqiang Road, Shijiazhuang, 050051, China.
To investigate the population distribution characteristics of elderly osteoporosis fracture patients in Hebei Province and analyze the effects of air pollutants on elderly osteoporosis fractures, We retrospectively collected 18,933 cases of elderly osteoporosis fractures from January 1, 2019, to December 31, 2022, from four hospitals in Hebei Province. The average age was 76.44 ± 7.
View Article and Find Full Text PDFEpidemic Zika virus strains from the Asian lineage induce an attenuated fetal brain pathogenicity.
Nat Commun
December 2024
KU Leuven Department of Microbiology, Immunology and Transplantation, Virology, Antiviral Drug & Vaccine Research Group, Rega Institute for Medical Research, Leuven, Belgium.
The 2015-2016 Zika virus (ZIKV) outbreak in the Americas revealed the ability of ZIKV from the Asian lineage to cause birth defects, generically called congenital Zika syndrome (CZS). Notwithstanding the long circulation history of Asian ZIKV, no ZIKV-associated CZS cases were reported prior to the outbreaks in French Polynesia (2013) and Brazil (2015). Whether the sudden emergence of CZS resulted from an evolutionary event of Asian ZIKV has remained unclear.
View Article and Find Full Text PDFZoonotic transmission of novel Influenza A variant viruses detected in Brazil during 2020 to 2023.
Nat Commun
December 2024
Laboratório de Vírus Respiratórios, Exantemáticos, Enterovírus e Emergências (LVRE), Oswaldo Cruz Foundation, Fiocruz, Rio de Janeiro, Brazil.
Zoonotic infections (swine-human) caused by influenza A viruses (IAVs) have been reported and linked to close contact between these species. Here, we describe eight human IAV variant infections (6 mild and 2 severe cases, including 1 death) detected in Paraná, Brazil, during 2020-2023. Genomes recovered were closely related to Brazilian swIAVs of three major lineages (1 A.
View Article and Find Full Text PDFExploring the Phenomenon of Domestic Violence in Taiwan During the COVID-19 Pandemic: A Complexity Theory Perspective.
J Community Psychol
January 2025
Department of Counseling and Applied Psychology, National Taichung University of Education, Taichung, Taiwan.
The COVID-19 pandemic has been one of the most significant public health events in human history. Domestic violence cases surged globally during the COVID-19 pandemic. In Taiwan, this trend was particularly evident, with a year-over-year increase in reported cases.
View Article and Find Full Text PDFcolorectal cancer is a common and serious condition, with surgical resection being the primary treatment for localized cases. Anastomotic dehiscence (AD) remains a significant postoperative complication, and anastomoses are typically created using either manual suturing or mechanical stapling, each with specific benefits and challenge. Material and this retrospective study analyzed outcomes in 100 rectal cancer patients who underwent surgical resection, with anastomoses performed via manual suturing (n=50) or mechanical stapling (n=50).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!