Control and Elimination
issues discussed risks and prevention of infection with PEDv. What about when
the disease gets into your farm? A comprehensive elimination strategy is needed
to return to optimal productivity. The basics of PED elimination from a sow herd
- bring in enough replacement gilts for the next 4-6 months, and then close the
herd to any new introductions.
- effective contact of all animals in the herd with infective PED virus is
required to develop solid and consistent immunity across the entire population.
Feedback of intestinal content from affected piglets early in the course of the
disease should begin immediately. Monitor occurrence of clinical signs in the
sows to confirm effective exposure. It is imperative to ensure each and every
animal in the herd is exposed during the first week.
- losses approaching 100% of the pigs are expected for a 3 to 4 week period as
sow herd immunity builds. Once piglets survive beyond 7 days, strict
implementation of infection control strategies is required, including
all-in-all-out by farrowing room, ensuring colostrum intake, no cross-fostering
or piglet movements, euthanasia of small or weak piglets, and minimizing age
spread. Implement all steps possible to avoid movement of infectious material
from gestation to farrowing as well as between crates and
- thorough sanitation of farrowing rooms, hallways, equipment, boots and
clothing is required during the cleanup phase to avoid infecting piglets. Don’t
forget hot boxes, processing carts, equipment and supplies. A checklist and
detailed inspection of the cleanup is necessary to ensure good
with your veterinarian on a well designed and meticulously implemented
farm-specific plan is key to elimination of the virus. Once clinical signs have
resolved, fecal swab or swiffer sample testing is used to verify success.
Additional information is available from PIC, and at: