Ohio Vector-Borne Disease Update: October 24, 2022

Here is the latest update from the Zoonotic Disease Program at the Ohio Department of Health:

As we move out of mosquito season and into colder weather, this will be the last Vector-borne Disease Update of the year. Vector-borne disease information will continue to be updated on our website and more details can be found at: https://odh.ohio.gov/vectorupdate.

Human Disease Surveillance

As of 10/21/2022, the Ohio Department of Health (ODH) reported 7 human cases of West Nile Virus (WNV). Cases include 4 males and 3 females between the ages of 40 – 81 years (median: 52 years) reported from Cuyahoga (2), Franklin (2), and Montgomery (3) counties with onset of symptoms between 07/16/2022 – 09/16/2022.

ODH also reported 13 cases of La Crosse virus. Cases include 8 males and 5 females between the ages of 4 – 16 years (median: 9 years) reported from Coshocton (2), Franklin (1), Knox (1), Muskingum (3), Perry (1), Richland (1), Ross (1), Stark (1), Tuscarawas (1), and Vinton (1) counties with onset of symptoms between 07/03/2022 – 09/12/2022.

Animal Disease Surveillance

Ohio has reported 2 equine cases of WNV from Franklin (1) and Holmes (1) counties. Symptom onsets range from 09/07/2022-09/13/2022.

Also, one case of Eastern equine encephalitis in a horse from Holmes County was reported with an illness onset date of 09/13/2022.

Vector Surveillance

As of 10/18/2022, ODH reported 14,019 pooled mosquito samples (453,507 Culex spp. total) have been tested for WNV. Of those, ODH tested 9,869 pools via PCR, Franklin County Public Health tested 1,358 pools via RAMP and Licking County Health Department tested 118 pools via RAMP. Columbus Public Health tested 555 pools via VecTOR and 602 pools via RAMP. Toledo Area Sanitary District tested 1,517 pools via qPCR. A total of 944 samples have tested positive for WNV.

 

You may contact the Zoonotic Disease Program (614-752-1029, option 1) if you have any questions.

How to remove a tick

Watch this video from OSU Entomology and OSU Extension Franklin County to learn how to safely remove a tick. Then check here for more information!

Inaugural Ohio Regional Tick Symposium – a huge Success!

On October 15, 2021, we welcomed over 80 attendees at the Ohio Regional Tick Symposium from academia, industry, public health, human and animal medicine/primary care, land management and extension! Participants learned about the ticks and tickborne diseases that are invading Ohio and other states in the region, as well as strategies to control them and protect humans and animals. Moreover, attendees participated in networking and breakout sessions where they got to interact with people outside of their disciplines and discuss how research and control can work together to combat the spread of tickborne diseases. Read more about this exciting event here:

https://idi.osu.edu/news-articles/ohio-regional-tick-symposium

If you wish to sign up for updates regarding future events, please sign up here.

 

2021 Ohio Vector-borne Disease Update 07/30/2021

Here is the latest report from the Ohio Department of Health Zoonotic Disease Program:

 

As of 07/29/2021, 6,198 pooled mosquito samples (204,425 Culex spp. total) have been tested for West Nile Virus (WNV). Of the 6,198 pooled samples tested so far, 86 samples have tested positive for WNV. The positive samples are from:

  • Clark County: 2 positive samples
  • Cuyahoga County: 4 positive samples
  • Franklin County (including Columbus Public Health):29 positive samples
  • Hamilton County (including Cincinnati Health Department): 1 positive sample
  • Lorain County: 7 positive samples
  • Lucas County: 41 positive samples
  • Portage County (including Kent City): 1 positive sample
  • Summit County: 1 positive sample

No human cases of WNV have been reported.

No human cases of La Crosse virus have been reported.

More details are available at: https://odh.ohio.gov/vectorupdate.

You may contact the Zoonotic Disease Program (614-752-1029, option 1) if you have any questions.

Ohio Vector Borne Disease Update: July 15, 2021

Here is the latest update from the Zoonotic Disease Program at the Ohio Department of Health:

As of 07/15/2021, 4,241 pooled mosquito samples (138,975 Culex spp. total) have been tested for West Nile Virus (WNV). Of the 4,241 pooled samples tested so far, 17 samples have tested positive for WNV. The positive samples are from:

  • Franklin County (including Columbus Public Health):11 positive samples
  • Hamilton County (including Cincinnati Health Department): 1 positive sample
  • Lucas County: 5 positive samples

No human cases of WNV have been reported.

No human cases of La Crosse virus have been reported.

More details are available at: https://odh.ohio.gov/vectorupdate.

You may contact the Zoonotic Disease Program (614-752-1029, option 1) if you have any questions.

Ohio Vector-Borne Disease Update: July 1, 2021

Here is the latest Ohio Vector-Borne disease update from the Ohio Department of Health:

 

As of 07/01/2021, 2,544 pooled mosquito samples (81,905 Culex spp. total) have been tested for West Nile Virus (WNV). Of the 2,544 pooled samples tested so far, 8 samples have tested positive for WNV. The positive samples are from:

  • Franklin County (including Columbus Public Health): 7 positive samples
  • Lucas County: 1 positive sample

 

No human cases of WNV have been reported.

 

The Ohio Department of Health has suggested that communities please consider increasing community and public education focused on personal protection to avoid mosquito bites and source reduction to prevent mosquito breeding.

 

More details are available at: https://odh.ohio.gov/vectorupdate.

 

The Zoonotic Disease Program can be reached at 614-752-1029 (option 1) if you have any questions.

Ohio Vector-borne Disease Update: June 15, 2021

The Ohio Department of Health has begun testing mosquitos for arboviral diseases during the 2021 surveillance season, and these are the initial results for June 15, 2021:

 

As of 06/15/2021, 368 pooled mosquito samples (12,043 Culex spp. total) have been tested for West Nile Virus (WNV). Of the 368 pooled samples tested so far, 0 samples have tested positive for WNV.  While we have not seen any positives yet, mosquitoes are active and now is a good time to start or increase your community and public education efforts focusing on personal protection to avoid mosquito bites and source reduction to prevent mosquito breeding.

 

For updated information or contact information you can visit The ODH Zoonotic Disease Program (ZDP) website, https://odh.ohio.gov/vectorupdate. The site will be updated every Friday.

 

The Zoonotic Disease Program can also be reached at 614-752-1029 (option 1) if you have any questions.

Special Collections of Tick Scientific Articles NOW Available

The ESA J. of Medical Entomology has just published a collection of several science articles on ticks. All in one public access issue! All you tick lovers out there should check this out! The articles will only be public access for a year.

 

“The Journal of Medical Entomology is pleased to publish a special collection of forum articles on the rise of ticks and tick-borne diseases in the United States. The articles were written by leaders in the field and highlight key accomplishments, significant information gaps, insights into trends and drivers, and identification of high priority needs.”  [NE IPM Center Newsletter]

 

https://academic.oup.com/jme/pages/the-rise-of-ticks-and-tick-borne-diseases

Save the Date: Inaugural Ohio Regional Tick Symposium

Join us on October 15th, 2021 at the 4H center on the Ohio State campus for the first Ohio Regional Tick Symposium. This one-day research symposium will bring researchers, public health officials, health practitioners, and pest management specialists together to facilitate discussions and share ongoing research. We’re excited to announce the two Keynote Speakers: Dr. Ben Beard, Deputy Director of the Division of Vector-Borne Diseases at the  Centers of Disease Control and Prevention (CDC) and Dr. Kirby Stafford, Chief Scientist/State Entomologist at the Connecticut Agricultural Experiment Station.

More information can be found here.

Registration will open in summer 2021. For registration updates, follow this link and submit your information.

 

 

Final 2020 Ohio Vector-borne Disease Update November 4, 2020

As we are moving out of mosquito season and into colder weather, this will be the last Vector-borne Disease Update of the year. Vector-borne disease information will continue to be updated on the Ohio Department of Health website and more details can be found at: www.odh.ohio.gov/vectorupdate.

Below is a summary of arbovirus activity in the state.

As of 10/29/2020, mosquito collection data has been shared by local partners in Ashland, Athens, Carroll, Clark, Clermont, Crawford, Cuyahoga, Fairfield, Franklin, Gallia, Greene, Hamilton, Hancock, Hocking, Lake, Licking, Lorain, Lucas, Mahoning, Medina, Meigs, Miami, Montgomery, Muskingum, Perry, Pickaway, Portage, Richland, Ross, Scioto, Shelby, Stark, Summit, Tuscarawas, Union, Vinton and Wood counties. The following are results of pooled mosquito samples tested for West Nile virus (WNV):

  • Clark County: 13,495 total mosquitoes tested; 22 positive samples
  • Crawford County (including Galion City): 45 total mosquitoes tested; 1 positive sample
  • Cuyahoga County: 1,057 total mosquitoes tested; 2 positive samples
  • Fairfield County: 1,784 total mosquitoes tested; 1 positive sample
  • Franklin County (including Columbus City): 128,198 total mosquitoes tested; 543 positive samples
  • Hamilton County (including Cincinnati City): 1,643 total mosquitoes tested; 4 positive samples
  • Lake County: 4,642 total mosquitoes tested; 12 positive samples
  • Lucas County: 6,375 total mosquitoes tested; 68 positive samples
  • Portage County (including Kent City): 13,028 total mosquitoes tested; 2 positive samples
  • Richland County (including Shelby City): 16,592 total mosquitoes tested; 4 positive samples
  • Summit County: 2,311 total mosquitoes tested; 2 positive samples
  • Union County: 4,319 total mosquitoes tested; 5 positive samples

This brings the total number of WNV positive mosquito samples in Ohio to 666.

As of 11/02/2020, the Ohio Department of Health reported 2 human cases of WNV. Cases include 2 males between the ages of 41 -62 years (median: 52 years) reported from Franklin (1) and Montgomery (1) counties with onset of symptoms between 08/25/2020 – 09/11/2020. There are several additional suspect cases under investigation.

The Ohio Department of Health also reported 30 cases of La Crosse virus. Cases include 19 males and 11 females between the ages of 3 -15 years (median: 7 years) reported from Ashland (1), Carroll (1), Coshocton (2), Delaware (2), Fairfield (1), Hamilton (1), Harrison (1), Hocking (2), Holmes (5), Licking (1), Logan (1), Marion (2), Perry (1),  Pickaway (1), Summit (2), Trumbull (1), Warren (1), Washington (2) and Wayne (2) counties with onset of symptoms between 07/02/2020 – 09/23/2020. There are several additional suspect cases under investigation.

 

Contact the Ohio Department of Health Zoonotic Disease Program (614-752-1029, option 1) if you have any questions.