Modern porcine reproductive and respiratory syndrome vaccines are used to reduce the clinical impact of the disease. These vaccines work by reducing the virus's presence in the blood of vaccinated pigs. It also helps to prevent the spread of the virus within a vaccinated population. The disease can affect gilts and sows, leading to low farrowing rates and higher mortality rates for newborn pigs.
During
early production, pigs vaccinated with the porcine reproductive and respiratory
syndrome vaccines show improved reproductive status. A reduction in ADG and
increased PCVAD clinical signs were observed in vaccinated pigs. These results
indicate that the benefits of the PRRS vaccination were outweighed by the late
amplification of the disease. Therefore, porcine animals should be vaccinated
with the PRRS vaccine as soon as possible to avoid this risk. For instance, in March 2022, the U.S. Department
of Agriculture (USDA) started developing a vaccine for African swine fever
(ASF) amidst a growing prevalence of this fever across the Dominican Republic
and Haiti.
Porcine
reproductive and respiratory syndrome vaccines are highly effective and can be
administered to pigs at any stage of production. It is suitable for all age
groups, and the vaccine can be administered every three to four months,
depending on the animal's age and health status. It can also be given to gilts.
It is important to note that this vaccine is only available for pigs that are
destined to breed and be reared.
The
global porcine
reproductive and respiratory syndrome vaccines market is
expected to grow mainly due to increasing demand for pork meat is
expected to propel the market growth over the forecast period.
Live
porcine reproductive and respiratory syndrome vaccines contain strains of the
PRRS virus that have been weakened to not cause any disease. This type of PRRS
virus can shed its strains after vaccination, but these are not harmful. This
means that the vaccine is highly effective for pregnant pigs. This means that
the vaccine can protect a pig from disease for a long time.
While
the porcine reproductive and respiratory syndrome vaccines do not prevent the
virus from infecting pigs, they do have some benefits. While it can prevent the
virus from infecting human eggs, it is not effective in preventing sperm from
circulating in the bloodstream. A taming protocol is a more effective option
since it reduces viral-induced IL-10. Moreover, it may have a beneficial effect
on the immune response of pigs.