Sweden again declared free of Newcastle disease

A May outbreak in a laying hen flock has been resolved, the World Organisation for Animal Health reports.

Roy Graber Headshot
Colony 2+
Courtesy Big Dutchman

The Newcastle disease situation in Sweden has been resolved, according to a report from the World Organisation for Animal Health (WOAH).

The most recent case of Newcastle disease was confirmed on May 13 in a commercial egg laying flock in Helsingborg, Sweden. The affected flock included 231,438 birds, and of those, 57,787 were described as positive cases.

WOAH reported at the time that decreased egg production and abnormal eggs were noticed at the affected farm, although no other clinical signs were observed. But testing was conducted at the National Veterinary Institute, with those tests proving positive for Newcastle disease.

Protective measures were put in place, including the establishment of a 3-kilometer protection zone and a 10-kilometer surveillance zone. Other protective measures that were applied include stamping out, movement control, traceability, surveillance, disinfection of the premises, destruction of animal products and disposal of carcasses, by-products and waste.

Following the sufficient carrying out of those procedures, the situation was reported as resolved.

Sweden has a history of Newcastle disease outbreaks, as prior to the Helsingborg case, the last time the country dealt with the virus was February 2023.

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