P-203. Incidence of Influenza in Agricultural Workers: The Agricultural Worker COVID-19 Asymptomatic and Symptomatic Transmission in the Home and Workplace (AGRI-CASA) Study, 2023-2024
Molly Lamb, Daniel Carreon, Brittany Adams, Neudy C Rojop, Mirella Calvimontes, Claire Bradley, Chelsea Iwamoto, Kareen Arias, Julio del Cid-Villatoro, Daniel Vásquez, Ashley Fowlkes, Daniel Olson

TL;DR
This study tracked influenza infections among agricultural workers in Guatemala, finding high rates of influenza A and low vaccination coverage, which could impact food security and worker productivity.
Contribution
The study provides the first detailed analysis of influenza incidence and seasonality in a rural agricultural community in Guatemala.
Findings
Influenza incidence peaked in early summer months (April to July) in both 2023 and 2024.
Only 3% of influenza cases had received a vaccine in the prior year, highlighting low vaccination coverage.
Influenza A viruses were responsible for the majority (84%) of confirmed influenza cases.
Abstract
Influenza virus infections can lead to substantial productivity losses among agricultural workers essential to food security throughout the Americas including the United States, and may impact household health and economic wellbeing through transmission to family members. From January 2023 – August 2024, we estimated the burden of influenza virus infection among a cohort of 170 households in a rural, agricultural community in southwest Guatemala. Households underwent active twice weekly surveillance for influenza-like illness (ILI), defined as ≥ 1 day of fever AND either cough or sore throat. Upon respiratory symptom onset, a respiratory swab specimen was collected and tested for influenza using RT-PCR using the Roche cobas Liat instrument. Influenza vaccination status was collected at time of vaccine administration for agricultural workers, and via retrospective self-report for…
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Taxonomy
TopicsRespiratory viral infections research · Influenza Virus Research Studies · Indoor Air Quality and Microbial Exposure
