Increase in Colorado Tick Fever Virus Disease Cases and Effect of COVID-19 Pandemic on Behaviors and Testing Practices, Montana, 2020

In 2020, Montana, USA, reported a large increase in Colorado tick fever (CTF) cases. To investigate potential causes of the increase, we conducted a case-control study of Montana residents who tested positive or negative for CTF during 2020, assessed healthcare providers' CTF awareness and test...

Full description

Saved in:
Bibliographic Details
Published in:Emerging infectious diseases Vol. 29; no. 3; pp. 561 - 568
Main Authors: Soto, Raymond A., Baldry, Erika, Vahey, Grace M., Lehman, Jennifer, Silver, Margaret, Panella, Amanda, Brault, Aaron C., Hughes, Holly R., Fitzpatrick, Kelly A., Velez, Jason, Biggerstaff, Brad J., Wolff, Brent, Randolph, Jean, Ruth, Laird J., Staples, J. Erin, Gould, Carolyn V.
Format: Journal Article
Language:English
Published: United States U.S. National Center for Infectious Diseases 01.03.2023
Centers for Disease Control and Prevention
Subjects:
Arachnids
Bites and stings
Case-Control Studies
Colorado Tick Fever - epidemiology
Colorado tick fever virus
coronavirus disease
COVID-19
COVID-19 Testing
Diagnostic tests
Disease prevention
Disease transmission
Epidemics
Fever
Health aspects
Health care industry
Humans
Increase in Colorado Tick Fever Virus Disease Cases and Effect of COVID-19 Pandemic on Behaviors and Testing Practices, Montana, 2020
Infections
Influence
Insect bites
Medical laboratories
Montana
Outdoor activities
Outdoors
Pandemics
Patients
Prevention
Public health
Relapsing fever
Remission (Medicine)
Risk factors
RNA virus infections
SARS-CoV-2
Severe acute respiratory syndrome coronavirus 2
Statistics
Tick-borne diseases
tickborne disease
United States
Virus diseases
Montana
United States
United States > US
Colorado
Idaho
Colorado tick fever virus
Montana
viruses
United States
zoonoses
respiratory infections
tickborne disease
COVID-19
SARS-CoV-2
vector-borne infections
severe acute respiratory syndrome coronavirus 2
PCR testing
coronavirus disease
vaccine-preventable diseases
ISSN:1080-6040, 1080-6059, 1080-6059
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In 2020, Montana, USA, reported a large increase in Colorado tick fever (CTF) cases. To investigate potential causes of the increase, we conducted a case-control study of Montana residents who tested positive or negative for CTF during 2020, assessed healthcare providers' CTF awareness and testing practices, and reviewed CTF testing methods. Case-patients reported more time recreating outdoors on weekends, and all reported finding a tick on themselves before illness. No consistent changes were identified in provider practices. Previously, only CTF serologic testing was used in Montana. In 2020, because of SARS-CoV-2 testing needs, the state laboratory sent specimens for CTF testing to the Centers for Disease Control and Prevention, where more sensitive molecular methods are used. This change in testing probably increased the number of CTF cases detected. Molecular testing is optimal for CTF diagnosis during acute illness. Tick bite prevention measures should continue to be advised for persons doing outdoor activities.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
content type line 23
ISSN:1080-6040
1080-6059
1080-6059
DOI:10.3201/eid2903.221240