An Update on Zika Virus in Asia

Lim, Sl Ki; Lim, Jacqueline Kyungah; Yoon, In Kyu

doi:10.3947/ic.2017.49.2.91

Cited by 70 publications

(67 citation statements)

References 54 publications

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“…Although a first report on circulation of ZIKV in Bangladesh was recently published,36 there are no peer‐reviewed studies on the seroprevalence of antibodies against ZIKV in Bangladesh. Studies from surrounding areas indicate that the seroprevalence of ZIKV will not exceed 20% 11. A larger study population might thus have been required to increase the power of the study.…”

Section: Discussionmentioning

confidence: 99%

“…Recently, the association between ZIKV and GBS has also been reported in various Latin‐American countries following outbreaks of ZIKV 4, 7, 8, 9. In Asia, where ZIKV has been endemic for several decades,10, 11, 12 the occurrence of GBS and other neurological complications after ZIKV infection have thus far not been reported. The frequency of ZIKV infections in endemic areas is lower than during outbreaks, but considering the size and continuity of the exposed population, a considerable number of people in Asia are expected to be at risk to develop GBS.…”

Section: Introductionmentioning

confidence: 99%

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Zika virus and Guillain–Barré syndrome in Bangladesh

GeurtsvanKessel

Islam

et al. 2018

Ann Clin Transl Neurol

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ObjectivePrevious studies have associated Guillain–Barré syndrome (GBS) with Zika virus (ZIKV) outbreaks in South America and Oceania. In Asia, ZIKV is known to circulate widely, but the association with Guillain–Barré syndrome is unclear. We investigated whether endemic ZIKV infection is associated with the development of GBS.MethodsA prospective study was conducted from 2011 to 2015 in Bangladesh. A total of 418 patients and 418 healthy family controls were included in the study. Patients were diagnosed with GBS prior to inclusion according to established criteria. Detailed information on the epidemiology, clinical presentation, electrophysiology, diagnosis, disease severity, and clinical course were obtained during a follow‐up of 1 year using a predefined protocol.Results ZIKV‐neutralizing antibodies were detected in our study from 2013 onwards. The prevalence of ZIKV‐neutralizing antibodies was not significantly higher in patients with GBS compared to healthy controls (OR 2.23, P = 0.14, 95% CI 0.77–6.53). Serological evidence for prior ZIKV infection in patients with GBS was associated with more frequent cranial, sensory, and autonomic nerve involvement compared to GBS patients with Campylobacter jejuni, the predominant preceding infection in GBS worldwide. Nerve‐conduction studies revealed that ZIKV antibodies were associated with a demyelinating subtype of GBS, while C. jejuni infections were related to an axonal subtype.InterpretationNo significant association was found between ZIKV infection and GBS in Bangladesh, but GBS following ZIKV infection was characterized by a distinct clinical and electrophysiological subtype compared to C. jejuni infection. These findings indicate that ZIKV may precede a specific GBS subtype but the risk is low.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Zika virus and Guillain–Barré syndrome in Bangladesh

GeurtsvanKessel

Islam

et al. 2018

Ann Clin Transl Neurol

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“…An estimated 219 million new malaria cases occurred and 435,000 people died worldwide in 2017 [50]. Zika virus infected more than one million people and resulted in thousand of infants with birth defects during 2015-2016 Zika virus epidemic [30]. The 2015-2016 yellow fever outbreak in Angola and Democratic Republic of the Congo caused 7,334 suspected cases and 498 deaths [49].…”

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confidence: 99%

Effects of travel frequency on the persistence of mosquito-borne diseases

Chen¹,

Gao²

2020

Discrete &Amp; Continuous Dynamical Systems - B

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Travel frequency of people varies widely with occupation, age, gender, ethnicity, income, climate and other factors. Meanwhile, the distribution of the numbers of times people in different regions or with different travel behaviors bitten by mosquitoes may be nonuniform. To reflect these two heterogeneities, we develop a multipatch model to study the impact of travel frequency and human biting rate on the spatial spread of mosquito-borne diseases. The human population in each patch is divided into four classes: susceptible unfrequent, infectious unfrequent, susceptible frequent, and infectious frequent. The basic reproduction number R 0 is defined. It is shown that the diseasefree equilibrium is globally asymptotically stable if R 0 ≤ 1, and there is a unique endemic equilibrium that is globally asymptotically stable if R 0 > 1. A more detailed study is conducted on the single patch model. We use analytical and numerical methods to demonstrate that the model without considering the difference of humans in travel frequency mostly underestimates the risk of infection. Numerical simulations suggest that the greater the difference in travel frequency, the larger the underestimate of the transmission potential. In addition, the basic reproduction number R 0 may decreasingly, or increasingly, or nonmonotonically vary when more people travel frequently.

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“…The ZIKV is an arthropod-borne virus from the Flaviviridae family, which includes other well known viruses such as dengue, Japanese encephalitis and yellow fever viruses (Sam, Chan, Vythilingam, & Sulaiman, 2016). The virus was first isolated from a monkey in Uganda and the first human case reported was in 1952 when it infected a 10 year old female from Nigeria (Lim, Lim, & Yoon, 2017). Since then, there were only scattered cases reported until 2007 when an outbreak occurred on Yap Island, Federated States of Micronesia .…”

Section: Zika Virus Outbreakmentioning

confidence: 99%

Applying Rational Model Approach in Decision Making for Preventive Measures of Zika Outbreak

A.S¹,

Mardiana²,

Farahana³

et al. 2019

IJPHCS

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Background: In November 2016, the WHO has declared Zika virus (ZIKV) infection as a public health emergency of international concern. Affected countries have to decide on the suitable control measures of ZIKV outbreak. This article aims to apply the Rational Model in the decision-making of ZIKV outbreak control measures. Materials and Methods:Adopting a scoping review method, articles were identified using three databases through the keywords "decision making theories" or "problem solving" and "public health" or "community health". Only articles written and published in English within the last 15 years were included. After filtering, 10 articles were reviewed. Result:The Rational decision-making model is positioned as the most promising, effective, and functional decision-making approach for ZIKV outbreak as it reduces chances of error and optimize resources. There are five domains of control measures in ZIKV outbreak which are decision support tools; technology development; surveillance and monitoring; infrastructural development and behavioural. In Malaysia, integrated vector management, entomological and disease surveillance, enhance infrastructural development and behavioural were practiced in control measures of ZIKV outbreak. Conclusion:The most common models used in decision making is the Rational Model and the Contingency Model. The basic concepts of Rational Model in decision-making for preventative measure of ZIKV outbreak were discussed in this article.

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An Update on Zika Virus in Asia

Cited by 70 publications

References 54 publications

Zika virus and Guillain–Barré syndrome in Bangladesh

Zika virus and Guillain–Barré syndrome in Bangladesh

Effects of travel frequency on the persistence of mosquito-borne diseases

Applying Rational Model Approach in Decision Making for Preventive Measures of Zika Outbreak

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