Seroprevalence of dengue infection: a cross-sectional survey in mainland Tanzania and on Pemba Island, Zanzibar

Vairo, Francesco; Nicastri, Emanuele; Meschi, Silvia; Schepisi, Monica Sañé; Paglia, Maria Grazia; Bevilacqua, Nazario; Mangi, Sabina; Sciarrone, Maria R.; Chiappini, Roberta; Mohamed, Jape A.; Racalbuto, Vincenzo; Di, Antonino; Capobianchi, Maria Rosaria; Ippolito, Giuseppe

doi:10.1016/j.ijid.2011.09.018

Cited by 62 publications

(73 citation statements)

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“…Studies in Latin America where several reports of increased number of adolescents with recent dengue infections have been made (Bhatt et al, 2013; Sharp et al, 2013; Teixeira et al, 2013; Villar et al, 2015) lends credence to the findings in our present study. A cross-sectional survey of febrile patients in Pemba Island, Zanzibar further supports our findings with a sero-prevalence of 15.4% in adults vs. 1.9% in patients under 15 years old (Vairo et al, 2012). However, reports from Asian countries where children under 5 years of age are particularly affected (World Health Organization, 2009) is at variance with the findings in this present study.…”

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confidence: 87%

High rate of unrecognized dengue virus infection in parts of the rainforest region of Nigeria

2016

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Section: 0 Discussionsupporting

confidence: 87%

High rate of unrecognized dengue virus infection in parts of the rainforest region of Nigeria

2016

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“…An endemic area often has the following common features: young age groups at a greater risk of infection [3]–[5], co-existence of multiple serotypes of dengue virus in local areas [2], [3], [5], [6], a higher seroprevalence of DENV antibodies (as high as 80%) in local inhabitants [3], [7] compared to that in non-endemic regions [8], [9], and a continuous spectrum of dengue severity identified, with children often at a higher risk of developing a severe form [3]–[5], whereas travelers often experience typical or mild dengue fever [10], [11].…”

Section: Introductionmentioning

confidence: 99%

The Prevalence and Endemic Nature of Dengue Infections in Guangdong, South China: An Epidemiological, Serological, and Etiological Study from 2005–2011

Guo

Lin

et al. 2014

PLoS ONE

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ObjectivesFrequent outbreaks of dengue are considered to be associated with an increased risk for endemicity of the disease. The occurrence of a large number of indigenous dengue cases in consecutive years indicates the possibility of a changing dengue epidemic pattern in Guangdong, China.MethodsTo have a clear understanding of the current dengue epidemic, a retrospective study of epidemiological profile, serological response, and virological features of dengue infections from 2005–2011 was conducted. Case data were collected from the National Notifiable Infectious Diseases Reporting Network. Serum samples were collected and prepared for serological verification and etiological confirmation. Incidence, temporal and spatial distribution, and the clinical manifestation of dengue infections were analyzed. Pearson's Chi-Square test was used to compare incidences between different age groups. A seroprevalence survey was implemented in local healthy inhabitants to obtain the overall positive rate for the specific immunoglobulin (Ig) G antibody against dengue virus (DENV).ResultsThe overall annual incidence rate was 1.87/100000. A significant difference was found in age-specific incidence (Pearson's Chi-Square value 498.008, P<0.001). Children under 5 years of age had the lowest incidence of 0.28/100000. The vast majority of cases presented with a mild manifestation typical to dengue fever. The overall seroprevalence of dengue IgG antibody in local populations was 2.43% (range 0.28%–5.42%). DENV-1 was the predominant serotype in circulation through the years, while all 4 serotypes were identified in indigenous patients from different outbreak localities since 2009.ConclusionsA gradual change in the epidemic pattern of dengue infection has been observed in recent years in Guangdong. With the endemic nature of dengue infections, the transition from a monotypic to a multitypic circulation of dengue virus in the last several years will have an important bearing on the prevention and control of dengue in the province and in the neighboring districts.

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“…It influences all age gatherings and both genders similarly, with an assault (rate of people who create sickness after contamination) of 40%-85%]. Different arbovirus are no doubt vital and are increasing more unmistakable quality as seen through an expansion in detailed action [17][18][19][20] and plague action of sicknesses, for example, dengue and Chikungunya [21][22][23][24]. Also, intestinal sickness should have been over-analyzed in various parts of Tanzania [25][26][27], mostly because of absence of differential pathogen analysis separated from jungle fever [28], including dengue and Chikungunya.…”

Section: Discussionmentioning

confidence: 99%

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2017

JHVRV

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The age group of 14 years to 69 was enrolled. The symptoms and duration and intensity of fever were systemically classified for the study. The only viral fever patients were included. AbstractIntroduction: Acute viral infection belong to the group of arthropod .Chikungunya fever now a days is spreading worldwide and some recent studies shown the different t features and most clinical features is topic of inertest is bony pain, which is the most severe form . Chikungunya fever is going to be the increasing number in the financially and economical burden. MethodologySample size: Total number of total patients was 245 in our study.Study design: Cohort study, systemically all patients were enrolled. Inclusion criteria:The age group of 14 years to 69 was enrolled. The symptoms and duration and intensity of fever were systemically classified for the study. Only viral fever patients were included. Exclusion criteria:The age group less than 13 and more than 70 years were excluded. Fever other than viral not included. Known case of any joint deformity and joint disease were excluded. The patients already using different types of painkillers prior to the disease for any systemic disease were not included. Data entry: SPSS 22 used for data entry.Result: A total 245 patients with duration of six month were selected for the study. We enrolled patients within six month period time. Total of patients visiting the hospital of age group of 14 age to 60 plus Conclusion: Fever of the patients were include both low grade and high grade, Most patient were having no symptoms except fever while rest, 38 patients having diarrhea, and 36 patients having vomiting 24 patients had flu like symptoms, flushing in 18 patients noticed and 18 patients having multiple presentations. The duration of the patients with the symptoms last for one week to three months. Most of them responded and get bettered with first 3 weeks and responded to acetaminophen.

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Seroprevalence of dengue infection: a cross-sectional survey in mainland Tanzania and on Pemba Island, Zanzibar

Abstract: These findings provide the first baseline data on dengue seroprevalence in the country. No recent dengue virus circulation in Tanzania and in the Zanzibar archipelago up until the early 1990s is reported.

Cited by 62 publications

References 10 publications

High rate of unrecognized dengue virus infection in parts of the rainforest region of Nigeria

High rate of unrecognized dengue virus infection in parts of the rainforest region of Nigeria

The Prevalence and Endemic Nature of Dengue Infections in Guangdong, South China: An Epidemiological, Serological, and Etiological Study from 2005–2011

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