相关实验视频

Updated: Jan 11, 2026

High-throughput Antiviral Assays to Screen for Inhibitors of Zika Virus Replication

High-throughput Antiviral Assays to Screen for Inhibitors of Zika Virus Replication

Published on: October 30, 2021

在巴西圣保罗州西北部的一次重大奇孔古尼亚疫情期间进行载体监测

Cecília Artico Banho¹, Maisa Carla Pereira Parra¹, Olivia Borghi Nascimento¹

¹Laboratório de Pesquisas em Virologia, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil.

|November 14, 2025

概括

奇孔古尼亚病毒 (CHIKV) 已经在巴西圣何塞德里奥普雷托市出现,蚊子监测显示蚊子的流行率增加和多次引入. 这导致了显著的CHIKV疫情,突出了强有力的树冠病毒监测的必要性.

科学领域:

医学昆虫学医学昆虫学
病毒学病毒学
公共卫生公共卫生

背景情况:

巴西是 arbovirus 出现的公认热点, 呈现正在进行的公共卫生挑战.
登革热在历史上主导了圣何塞多里奥普雷托 (SJdRP) 的树状病毒病,报告的 chikungunya 病毒 (CHIKV) 病例有限 (2015年至2023年间为62例),表明密码循环.
圣保罗州的CHIKV通知在2024年开始显著增加,由于临床表现重叠,需要加强对树状病毒发烧性疾病的监测.

研究的目的:

为了调查CHIKV在巴西圣何塞德里奥普雷托的出现和传播.
实施和评估用于CHIKVRNA检测的蚊子监测.
通过遗传学分析了解CHIKV的遗传多样性和引入动态.

主要方法:

在SJdRP中,蚊子收集在15个月内进行.
采集的蚊子标本使用分子方法选CHIKVRNA.
阳性样本经过病毒隔离和全基因组测序以进行遗传学分析.

主要成果:

总体而言,5.6%的蚊子标本检测出CHIKV RNA.阳性.
蚊子中CHIKV的流行率从2023年12月开始增加,达到2024年5月的峰值,与人类病例报告相关.
遗传学分析显示,CHIKV主要来自巴西东南部的多个引入,建立了本地传播,并导致了重大疫情.

结论:

该研究证实了CHIKV在巴西SJdRP的建立和显著传播,这是由多次引入所驱动的.
蚊子中CHIKV流行率增加之前和同时发生重大疫情,强调了昆虫学监测的有效性.
这些发现凸显了巴西迫切需要加强树状病毒监测系统,以检测和应对新出现的传染病.

更多相关视频

Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1

Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1

Published on: March 13, 2018

Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

Published on: May 31, 2020

相关概念视频

Principles of Disease Surveillance

Principles of Disease Surveillance

Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...

Steps in Outbreak Investigation

Steps in Outbreak Investigation

In the ever-evolving field of public health, statistical analysis serves as a cornerstone for understanding and managing disease outbreaks. By leveraging various statistical tools, health professionals can predict potential outbreaks, analyze ongoing situations, and devise effective responses to mitigate impact. For that to happen, there are a few possible stages of the analysis: