Related Experiment Video

Updated: Aug 22, 2026

Detection of Infectious Virus from Field-collected Mosquitoes by Vero Cell Culture Assay
07:23

Detection of Infectious Virus from Field-collected Mosquitoes by Vero Cell Culture Assay

Published on: June 9, 2011

West Nile virus activity--United States, September 8-14, 2004

    MMWR. Morbidity and Mortality Weekly Report
    |September 17, 2004
    PubMed

    Insights

    A total of 195 human West Nile virus (WNV) cases were reported across 26 states between September 8-14. This highlights the ongoing WNV transmission and the need for continued public health surveillance.

    Area of Science:

    • Public Health
    • Epidemiology
    • Infectious Diseases

    Background:

    • West Nile virus (WNV) is a mosquito-borne flavivirus with significant public health implications.
    • Surveillance data is crucial for understanding WNV transmission patterns and informing control strategies.

    Purpose of the Study:

    • To report the number of human WNV cases identified during a specific surveillance week.
    • To document the geographical distribution of WNV cases in the United States.

    Main Methods:

    • Data collection through national public health surveillance systems.
    • Reporting of confirmed human WNV illness cases.

    Main Results:

    • A total of 195 human WNV cases were reported.
    • Cases were reported from 26 different states across the US.
    • The reporting period was September 8-14.

    Conclusions:

    • Widespread WNV transmission occurred during the reported week.
    • Continued monitoring is essential to track WNV activity and potential outbreaks.

    More Related Videos

    In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection10:39

    In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection

    Published on: November 27, 2014

    Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus10:35

    Vector Competence Analyses on Aedes aegypti Mosquitoes using Zika Virus

    Published on: May 31, 2020

    Related Concept Videos

    Arboviral Encephalitis01:25

    Arboviral Encephalitis

    Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
    Yellow Fever01:18

    Yellow Fever

    Yellow fever is a viral hemorrhagic disease caused by the yellow fever virus (YFV), a member of the Flaviviridae family. It is transmitted primarily by Aedes and Haemagogus mosquitoes in tropical and subtropical regions of Africa and South America. After transmission through a mosquito bite, the virus initially replicates in skin-resident immune cells such as dendritic cells and macrophages. These cells then migrate to the lymph nodes, where viral replication increases, eventually leading to...
    Encephalitis l: Introduction01:19

    Encephalitis l: Introduction

    Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
    Rocky Mountain Spotted Fever01:26

    Rocky Mountain Spotted Fever

    Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
    American Trypanosomiasis01:22

    American Trypanosomiasis

    Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...
    Rabies01:28

    Rabies

    Rabies is a lethal zoonotic disease caused by a single-stranded, negative-sense RNA virus of the Lyssavirus genus, within the family Rhabdoviridae. Its primary mode of transmission to humans is through bites or saliva-contaminated scratches from infected mammals such as dogs, bats, raccoons, or foxes. Transmission can also occur if infectious saliva contacts abraded skin or intact mucous membranes, including the conjunctiva.Viral Entry and Early ReplicationOnce introduced at the bite or scratch...