Proximity to livestock farms and COVID-19 in the Netherlands, 2020–2021

Objectives: In the Netherlands, during the first phase of the COVID-19 epidemic, the hotspot of COVID-19 overlapped with the country's main livestock area, while in subsequent phases this distinct spatial pattern disappeared. Previous studies show that living near livestock farms influence human respiratory health and immunological responses. This study aimed to explore whether proximity to livestock was associated with SARS-CoV-2 infection. Methods: The study population was the population of the Netherlands excluding the very strongly urbanised areas and border areas, on January 1, 2019 (12,... Mehr ...

Verfasser: Hogerwerf, Lenny
Post, Pim M.
Bom, Ben
van der Hoek, Wim
van de Kassteele, Jan
Stemerding, Annette M.
de Vries, Wilco
Houthuijs, Danny
Dokumenttyp: article/Letter to editor
Erscheinungsdatum: 2022
Schlagwörter: Air pollution / Environmental exposure / Farm animals / Incidence / Livestock / SARS-CoV-2
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-27615004
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : https://research.wur.nl/en/publications/proximity-to-livestock-farms-and-covid-19-in-the-netherlands-2020

Objectives: In the Netherlands, during the first phase of the COVID-19 epidemic, the hotspot of COVID-19 overlapped with the country's main livestock area, while in subsequent phases this distinct spatial pattern disappeared. Previous studies show that living near livestock farms influence human respiratory health and immunological responses. This study aimed to explore whether proximity to livestock was associated with SARS-CoV-2 infection. Methods: The study population was the population of the Netherlands excluding the very strongly urbanised areas and border areas, on January 1, 2019 (12, 628, 244 individuals). The cases are the individuals reported with a laboratory-confirmed positive SARS-CoV-2 test with onset before January 1, 2022 (2, 223, 692 individuals). For each individual, we calculated distance to nearest livestock farm (cattle, goat, sheep, pig, poultry, horse, rabbit, mink). The associations between residential (6-digit postal-code) distance to the nearest livestock farm and individuals' SARS-CoV-2 status was studied with multilevel logistic regression models. Models were adjusted for individuals' age categories, the social status of the postal code area, particulate matter (PM10)- and nitrogen dioxide (NO2)-concentrations. We analysed data for the entire period and population as well as separately for eight time periods (Jan–Mar, Apr–Jun, Jul–Sep and Oct–Dec in 2020 and 2021), four geographic areas of the Netherlands (north, east, west and south), and for five age categories (0–14, 15–24, 25–44, 45–64 and > 65 years). Results: Over the period 2020–2021, individuals' SARS-CoV-2 status was associated with living closer to livestock farms. This association increased from an Odds Ratio (OR) of 1.01 (95% Confidence Interval [CI] 1.01–1.02) for patients living at a distance of 751–1000 m to a farm to an OR of 1.04 (95% CI 1.04–1.04), 1.07 (95% CI 1.06–1.07) and 1.11 (95% CI 1.10–1.12) for patients living in the more proximate 501–750 m, 251–500m and 0–250 m zones around farms, all relative to ...