• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Monday, August 4, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Health

UMD finds more West Nile virus-infected mosquitoes in lower-income areas of Baltimore

Bioengineer by Bioengineer
December 17, 2020
in Health
Reading Time: 4 mins read
0
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

Preliminary results point to a need for more research and education to improve environmental justice and protect urban public health in at-risk populations

IMAGE

Credit: Lena McBean, University of Maryland

In a new study published in the Journal of Medical Entomology, researchers at the University of Maryland (UMD) found higher rates of West Nile virus-infected mosquitoes in lower-income neighborhoods in urban areas of Baltimore, Maryland. Continuing a collaboration with the Cary Institute of Ecosystem Studies and building on previous work finding larger mosquitoes (which may be more likely to transmit disease) in lower-income neighborhoods, this preliminary data provides another piece of the puzzle pointing to higher risks of mosquito-transmitted diseases like West Nile virus in these neighborhoods already struggling with environmental injustices and poorer health outcomes. This paper points to a need for more research in lower-income communities to inform policy and programs that can protect the health of those most at risk.

“In order to effectively address environmental injustices, we have to understand where they occur and why,” says Sarah Rothman, doctoral student in Environmental Science & Technology at UMD and lead author of this paper. “Urban mosquito sampling often takes place in city parks or other areas where traps are easily accessible to personnel, but we need to ensure we are sampling for mosquitoes in neighborhoods that are diverse in socioeconomic status. Representative surveillance is the first step. Only after identifying where disease risk is actually greatest can we direct public health resources to communities that need them most.”

This study acts as a first step in addressing environmental justice, providing another important connection between lower-income neighborhoods and risky mosquito populations, according to Paul Leisnham, associate professor in Environmental Science & Technology at UMD. “A higher infection rate was shown in two species of mosquito, the invasive tiger mosquito and the northern house mosquito. In previous studies, we have shown that mosquito abundances and female body sizes, two other ecological parameters that promote virus transmission, are also larger in lower-income neighborhoods. Now we have introduced another piece of the puzzle pointing to higher risks in lower-income areas.”

Leisnham spends time interacting with locals in urban Baltimore through his research and Extension efforts, highlighting an important point for mosquito population growth that isn’t exactly intuitive: “Less trash, fewer mosquitoes.” Mosquitoes can surprisingly breed in an amount of water as small as what gathers in a bottle cap left outside in a shady area for four or five days. If the water gathers in a shaded container and isn’t infiltrating into the ground through managed stormwater practices, it can easily become a mosquito breeding ground that can produce hundreds of biting adults.

Cary Institute disease ecologist Shannon LaDeau, collaborator on the study, explains, “More people are living in cities. At the same time, many other species are also adapting to city living. Invasive species like the tiger mosquito increasingly thrive in temperate urban areas, living among us and fundamentally altering the risk of local disease emergence. People living in neighborhoods with abandoned infrastructure are more at risk, because tiger mosquitoes flourish in less managed landscapes.”

While the connection between vacant lots, more trash, and more mosquitoes is established, more research is needed to further connect these environmental injustices to higher infection rates in humans. “West Nile virus incidence in the human population is often underestimated,” says Rothman. “Most cases are asymptomatic, and mild symptomatic cases are easily confused with other illnesses that present similarly, like the flu. We are likely especially missing cases in underserved populations with reduced access to quality medical care. Since it’s hard to track the prevalence of West Nile virus in people, we suggest additional sampling of the virus in mosquitoes. Additional research could also help us figure out why we’re seeing patterns of higher mosquito infection rates in lower-income neighborhoods and how these patterns are affected by environmental factors such as weather.”

“It’s important, especially in populations from lower-income areas since they are often immunocompromised with other infections, including HIV and likely COVID-19,” adds Leisnham. “The CDC [Centers for Disease Control and Prevention] has reported that the U.S. is not prepared for mosquito and tick-borne risks based on local health agencies’ surveys.”

Rothman stresses the need for this work to improve environmental justice in lower-income areas of cities like Baltimore. “Our research supports the notion that residents in these neighborhoods are disproportionately at risk for mosquito-borne illness,” says Rothman. “We need additional research to understand and address the underlying factors, and ultimately protect urban residents.”

###

This paper, entitled “Higher West Nile virus infection in Aedes albopictus and Culex mosquitoes from lower income neighborhoods in urban Baltimore, Maryland,” is published in the Journal of Medical Entomology, DOI: 10.1093/jme/tjaa262.

Media Contact
Samantha Watters
[email protected]

Original Source

https://agnr.umd.edu/news/umd-researchers-find-higher-rates-west-nile-virus-infected-mosquitoes-lower-income

Related Journal Article

http://dx.doi.org/10.1093/jme/tjaa262

Tags: Climate ChangeEnvironmental HealthInfectious/Emerging DiseasesMedicine/HealthPublic HealthScience/Health and the LawSocioeconomics
Share12Tweet8Share2ShareShareShare2

Related Posts

Microglia Chromatin States Reveal Alzheimer’s Spatial Patterns

Microglia Chromatin States Reveal Alzheimer’s Spatial Patterns

August 4, 2025
blank

Expanded Subventricular Zone Aids Postnatal Interneuron Migration

August 3, 2025

Mapping Human Thalamocortical Links via Electrical Stimulation

August 3, 2025

Trans-Synaptic Spread of Tau in PSP Uncovered

August 3, 2025
Please login to join discussion

POPULAR NEWS

  • Blind to the Burn

    Overlooked Dangers: Debunking Common Myths About Skin Cancer Risk in the U.S.

    60 shares
    Share 24 Tweet 15
  • Neuropsychiatric Risks Linked to COVID-19 Revealed

    53 shares
    Share 21 Tweet 13
  • Dr. Miriam Merad Honored with French Knighthood for Groundbreaking Contributions to Science and Medicine

    46 shares
    Share 18 Tweet 12
  • Predicting Colorectal Cancer Using Lifestyle Factors

    39 shares
    Share 16 Tweet 10

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Post-Cancer Suicide Risk: Japan Study Insights

Broadband Quantum Sensing Enables 10-km Passive Drone Detection

Microglia Chromatin States Reveal Alzheimer’s Spatial Patterns

  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.