Hog cholera
#GS3 #Diseases
News : Suspected hog cholera has killed at least a dozen pigs across two districts of Meghalaya.
- This coincided with the death of more than 2,900 pigs in Assam due to African swine fever (AFS), a first in the Indian subcontinent.
- Officials in Meghalaya have allegedly been silent on a possible outbreak of hog cholera, also known as classical swine fever.
Hog Cholera or Classical Swine Fever
- Classical swine fever is a highly contagious, viral disease of swine that in its most virulent form causes morbidity and mortality approaching 100%. Viral strains of low to moderate virulence cause infections with a gradient of severity, some clinically inapparent.
- Classical swine fever is a Pestivirus (family Flaviviridae), related to the virus of bovine virus diarrhea (BVD) and sheep’s border disease (BD).
- Strains of CSF vary greatly in antigenicity and virulence. Virulence can increase in a single passage through pigs.
- Strains of high virulence cause classic outbreaks with high morbidity and mortality.
- Strains of moderate virulence cause subacute or chronic infections. Strains of low virulence can cause mild or inapparent infection, reproductive failure or neonatal losses.
