Prevalence of West Nile virus and Usutu virus serum antibodies in Dutch bird ringers

• Conditions: seroconversion; neurological diseases such as encephalitis; West Nile virus infection; 10047438

• Registration Number: NL-OMON50775
• Lead Sponsor: eids Universitair Medisch Centrum

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 9 April 2024

Recruitment & Eligibility

• Status: Pending
• Sex: Not specified
• Target Recruitment: 680

Inclusion Criteria

In order to be eligible to participate in this study, a subject must meet the
following criteria:
carrying-out bird ringing activities during spring, summer or early autumn 2020
in The Netherlands

Exclusion Criteria

A potential subject who meets any of the following criteria will be excluded
from participation in this study:
* Not willing to participate in this study
* Using medication interfering with antibodies production
* Under 18 years of age

Study & Design

• Study Type: Observational invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>The proportion of individuals with neutralising antibodies against WNV by region<br /><br><br /><br>The proportion of individuals with neutralising antibodies against USUV by<br /><br>region</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>The proportion of individuals with IgM antibodies against WNV<br /><br><br /><br>The proportion of individuals with IgG antibodies against WNV<br /><br><br /><br>The proportion of individuals with IgM antibodies against USUV<br /><br><br /><br>The proportion of individuals with IgG antibodies against USUV<br /><br><br /><br>The proportion of individuals with complaints compatible with WNF since April<br /><br>2020<br /><br><br /><br>The proportion of individuals with complaints compatible with WNVD since April<br /><br>2020<br /><br><br /><br>Single or multiple factors related to demographics, habitat and exposure risk<br /><br>(such as bird ringing locations, contact with bird fluids, mosquito bites<br /><br>preventive measures) which are associated with WNV and/or USUV infection</p><br>