Prevention and treatment of the porcine reproductive and respiratory syndrome (PRRS) using immunoglobulins obtained from egg yolk from hens hyperimmunized with the PRRS virus

摘要

The instant invention relates to the use of immunoglobulins obtained from the egg yolk of hens hyperimmunized with PRRS virus. The immunoglobulins are obtained through the extraction of the aqueous phase of the yolk through the use of hydroxypropylmethylcellulose phtalate at a final concentration of 0.05% and sodium azide at a final concentration of 0.001%. The invention also relates to the administration of these immunoglobulins for the prevention and treatment of pigs infected with the PRRS virus in order to lower mortality rates, obtain weight gain and diminish viral excretion in the herds.