From the Los Altos Town Crier August 17, 2022 The drought baking California has rendered water-restricting local lawns and yards arid, but mosquitoes have fared well this summer nonetheless. Santa…
Author: Sarah Spencer
West Nile Virus Update: Six More Areas in County Report Positive Samples
From SCV News August 16, 2022 The Greater Los Angeles County Vector Control District has confirmed 13 additional mosquito samples that tested positive for West Nile virus. This brings the…
Orange County man tests positive for West Nile virus; 1st reported case in county
From ABC 7 August 13, 2022 ORANGE, Calif. (KABC) — Orange County has its first reported case of West Nile virus after a man tested positive this week. Details surrounding the…
‘It’s tick season all year round’: Precaution recommended for Sonoma County residents against Lyme disease carrying bugs
From The Press Democrat August 13, 2022 Former Bay Area news anchor Leslie Griffith died Aug. 10, according to a report by KTVU Channel 2 News. Family members say Griffith had been…
Orange County reports this year’s first human case of West Nile virus
From CBS Los Angeles August 12, 2022 A man who tested positive for West Nile virus infection is the first human case reported in Orange County this year, public health…
More Mosquitoes Test Positive For West Nile Virus In Contra Costa
From the Martinez, CA Patch August 12, 2022 CONTRA COSTA COUNTY, CA — More mosquitoes have tested positive for West Nile virus in Contra Costa County, authorities said Friday. The…
News Brief 8.10.22
MVCAC 91st Annual Conference; MVCAC 91st Annual Conference Call to Present a Poster and William E. Walton Poster Competition; 2022 William C. Reeves New Investigator Award Applications Due 10/3/22; MVCAC…
Epidemiologic and environmental characterization of the re-emergence of St. Louis Encephalitis Virus in California, 2015–2020
Posted by Vector and Vector-borne Disease Committee August 10, 2022 Mary E. Danforth1, Robert E. Snyder1, Tina Feiszli1, Teal Bullick2, Sharon Messenger2, Carl Hanson2, Kerry Padgett1, Lark L. Coffey3, ChristopherM.…
Positive West Nile Virus Mosquitoes Found in Portions of Cupertino
From the County of Santa Clara August 9, 2022 SANTA CLARA COUNTY, CALIF. – The County of Santa Clara Vector Control District has confirmed the presence of West Nile virus-positive mosquitoes in…
Vector Control Confirms 28 Additional Positive West Nile Virus Samples
From SCV News August 9, 2022 The Greater Los Angeles County Vector Control District has confirmed 28 additional mosquito samples that tested positive for West Nile virus. This brings the…
Potentially deadly mosquito found in Contra Costa Co. for the first time
From ABC 7 News August 6, 2022 MARTINEZ, Calif. (KGO) — On Friday, the Contra Costa Mosquito and Vector Control District announced that an invasive mosquito species has been discovered in…
Yolo County’s 1st human case of West Nile virus in 2022 was found. Here’s what that means
From KCRA3 August 4, 2022 YOLO COUNTY, Calif. — Health officials in Yolo County said Wednesday that the first human case of the mosquito-borne West Nile virus so far this…
First human case of West Nile virus reported in Butte County
From ABC 7 August 4, 2022 The Butte County Public Health agency (BCPH) confirmed this year’s first human case of West Nile Virus (WNV) infection in Butte County, making this the seventh…
News Brief 8.3.22
MVCAC 91st Annual Conference Call to Present a Poster and William E. Walton Poster Competition; 2022 William C. Reeves New Investigator Award Applications Due 10/3/22; MVCAC 91st Annual Conference Call…
Mosquitoes test positive for West Nile virus in Sunnyvale, Santa Clara, SJ
From KRON 4 August 3, 2022 (BCN) — Four days after Contra Costa County reported mosquitoes carrying West Nile virus, officials in Santa Clara County reported Tuesday that they too have…
1st human case of West Nile Virus detected in Yolo County
From ABC 10 August 3, 2022 YOLO COUNTY, Calif. — Yolo County health officials have confirmed the first human case of West Nile virus (WNV) in the county. On Wednesday,…
Colorado Tick Fever Virus in the Far West: Forgotten, but Not Gone
Posted by Vector and Vector-borne Disease Committee August 2, 2022 Kerry A. Padgett,1 Anne Kjemtrup,1 Mark Novak,1 Jason O. Velez,2 and Nicholas Panella2 1Vector-Borne Disease Section, California Department of Public…
Tulare County confirms human case of St. Louis Encephalitis Virus
From ABC 30 August 2, 2022 TULARE COUNTY, Calif. (KFSN) — Tulare County Public Health has confirmed a human case of St. Louis Encephalitis Virus. Officials say it’s similar to West…
Positive Case of West Nile Virus Found in Contra Costa County Mosquitoes
From NBC Bay Area August 1, 2022 Contra Costa County health officials are warning people to be careful after its first positive case of West Nile in a group of…
How to prevent West Nile Virus in Kern County
From 23ABC August 1, 2022 BAKERSFIELD, Calif. (KERO) — Every year in Kern County people and animals are infected by the West Nile Virus. According to Kern County Public Health in 2019…
West Nile Virus: Mosquitoes Test Positive In Contra Costa County
From the Concord, CA Patch July 29, 2022 CONTRA COSTA COUNTY, CA — A group of mosquitoes has tested positive for West Nile Virus in Contra Costa County, the Contra…
News Brief 7.27.22
MVCAC 91st Annual Conference Call to Present a Poster and William E. Walton Poster Competition; 2022 William C. Reeves New Investigator Award Applications Due 10/3/22; MVCAC 91st Annual Conference Call…
High temperatures increase risk of mosquito bites and West Nile virus
From the Lake County News July 28, 2022 LAKEPORT, Calif. — Mosquitoes are here, despite the drought, and the high temperatures are ideal for both mosquitoes and West Nile virus…
First case of West Nile for 2022 was reported in Kern County
From 23ABC July 25, 2022 KERN COUNTY, Calif. (KERO) — Kern Public Health has confirmed the first West Nile infection of the year. West Nile Virus is a disease primarily spread by…
West Nile virus detected in Northern Vacaville
From ABC10 July 25, 2022 VACAVILLE, Calif. — Vacaville city officials announced on Monday Solano County Public Health detected West Nile virus in the area. Specifically, health officers said they detected the…
Survival and Release of 5 American Crows (Corvus brachyrhynchos) Naturally Infected With West Nile Virus
Posted by Vector and Vector-borne Disease Committee July 25, 2022 Cynthia Hopf, Elizabeth Bunting, Anne Clark, and Sara Childs-Sanford From the Janet L. Swanson Wildlife Hospital and the Department of…
Why are there no human West Nile virus outbreaks in South America?
Posted by Vector and Vector-borne Disease Committee July 25, 2022 Camila Lorenz,* and Francisco Chiaravalloti-Neto Department of Epidemiology, School of Public Health, University of S~ao Paulo, S~ao Paulo, Brazil The…
Yellow fever mosquito detected in Placer County
From FOX 40 July 22, 2022 GRANITE BAY, Calif. (KTXL) — On Tuesday, the Placer County Mosquito and Vector Control District announced that on July 14 Aedes aegypti, yellow fever mosquitos, were…
West Nile virus on the rise in Fresno County. Here’s how you can protect yourself
From the Fresno Bee July 22, 2022 An increase in West Nile virus-positive mosquitoes prompted officials Friday to issue an alert for Fresno County residents. Katherine Ramirez of the Consolidated…
Valley gets another case of West Nile virus
From the Valley Press July 22, 2022 LANCASTER — The Valley’s second case of West Nile virus this season has been found in an infected great horned owl, Antelope Valley…
News Brief 7.20.22
MVCAC 91st Annual Conference Call to Present a Poster and William E. Walton Poster Competition; 2022 William C. Reeves New Investigator Award Applications Due 10/3/22; MVCAC 91st Annual Conference Call…
Experimental Rickettsia typhi Infection in Monodelphis domestica: Implications for Opossums as an Amplifying Host in the Suburban Cycle of Murine Typhus
Posted by Vector and Vector-borne Disease Committee July 20, 2022 Lucas S. Blanton1, Bethany R. Quade1, Alejandro Ramírez-Hernández2, Nicole L. Mendell3, Alejandro Villasante-Tezanos4, Donald H. Bouyer3, John L. VandeBerg5, and…
Second Horse Tests Positive for West Nile Virus in California
From The Horse July 19, 2022 The California Department of Food and Agriculture confirmed a 4-year-old unvaccinated Quarter Horse gelding in Kern County, California, positive for West Nile virus (WNV)…
Mosquitoes carrying West Nile virus found in Santa Clara, Sunnyvale
From KRON4 July 18, 2022 Mosquitoes carrying West Nile virus have been found in Santa Clara and Sunnyvale, the County of Santa Clara Vector Control District confirmed on Monday. On…
Protect Yourself from Mosquitos
From the Lake Balboa Neighborhood Council July 18, 2022 The Greater LA County Vector Control reminds everyone that we no longer have a “mosquito season.” Mosquitos remain active throughout the year…
First person tests positive for West Nile in Kings County
From FOX 26 News July 15, 2022 KINGS COUNTY, Calif. — The first positive human case of West Nile (WNV) has now been reported in Kings County, the first in the…
News Brief 7.13.22
MVCAC 91st Annual Conference Call for Papers and Presentations; Upcoming Events; PR Committee Education and Outreach Materials Google Drive; The role of cofeeding arthropods in the transmission of Rickettsia felis;…
No Evidence of SARS-CoV-2 Among Flies or Cockroaches in Households Where COVID-19 Positive Cases Resided
Posted by Vector and Vector-borne Disease Committee July 13, 2022 Christopher M Roundy, Sarah A Hamer, Italo B Zecca, Edward B Davila, Lisa D Auckland, Wendy Tang, Haley Gavranovic, Sonja…
West Nile virus discovered in Solano County
From the Mercury News July 13, 2022 West Nile virus season has kicked off in Solano County with the discovery of a deceased and infected bird, county officials announced Tuesday.…
First case of mosquito-borne illness reported in Stanislaus area. It can be serious
From the Modesto Bee July 13, 2022 Stanislaus County public health officials confirmed a case of St. Louis encephalitis Wednesday. The viral disease spread by mosquitoes is less common than…
Call for Papers and Presentations
The Mosquito and Vector Control Association of California (MVCAC) will hold its 92nd Annual Conference January 21-24, 2024 at the Monterey Convention Center and Portola Hotel in Monterey, CA. The…
9 new samples test positive for West Nile virus across Los Angeles County
From CBS Los Angeles July 11, 2022 Nine new samples have come up positive for West Nile virus across Los Angeles County, vector control district officials announced Monday. New positive…
West Nile virus found in Santa Clara County
From the Daily Journal July 11, 2022 Mosquitoes with West Nile virus have been found in Sunnyvale and Santa Clara. The County of Santa Clara Vector Control District has confirmed…
Santa Clara County to spray for West Nile virus
From KRON4 July 10, 2022 SANTA CLARA CO., Calif. (BCN) — Mosquitoes with West Nile virus have been found in Sunnyvale and Santa Clara. The County of Santa Clara Vector…
A volatile from the skin microbiota of flavivirus-infected hosts promotes mosquito attractiveness
Posted by Vector and Vector-borne Disease Committee July 3, 2022 Cell 2022 [in press]. Zhang H., Zhu YB, Lui ZW, Peng YM, Peng WY, Tong LQ, Wang JL, Lui QY,…
The role of cofeeding arthropods in the transmission of Rickettsia felis
Posted by Vector and Vector-borne Disease Committee July 2, 2022 Authors: Chanida Fongsaran, Krit Jirakanwisal, Natthida Tongluan, Allison Latour, Sean Healy, Rebecca C. Christofferson, Kevin R. Macaluso Affiliation: Vector-Borne Disease…
News Brief 6.29.22
Upcoming Events; Standardised bioassays reveal that mosquitoes learn to avoid compounds used in chemical vector control after a single sub-lethal exposure; DPR System Public Engagement Opportunity; Meritorious Service Award, Honorary…
Positive West Nile Virus Mosquitoes Found in Portion of Milpitas
From the County of Santa Clara June 29, 2022 Targeted adult mosquito control treatment scheduled for Thursday, June 30 in a limited area within Milpitas SANTA CLARA COUNTY, CALIF. – The County…
Mosquito that carries yellow fever detected in Butte County
From Action News Now June 28, 2022 BUTTE COUNTY, Calif. – The mosquito that carries yellow fever has been confirmed in Butte County. This is the third year in a row…
Standardised bioassays reveal that mosquitoes learn to avoid compounds used in chemical vector control after a single sub-lethal exposure
Posted by Vector and Vector-borne Disease Committee June 27, 2022 Seynabou Sougoufara, Hanna Yorkston-Dives, Nurul Masyirah Aklee, Adanan Che Rus, Jaal Zairi & Frederic Tripet Centre for Applied Entomology and…