African swine fever differential diagnosis

Erysipelas pasteurellosis anthrax paratyphoid and salmonellosis Plowright et al 1994. ASF is found in countries around the world particularly in sub-Saharan Africa.

The virus attaches to the erythrocytes therefore any hemorrhagic tissue can be a good candidate for testing.

African swine fever differential diagnosis. African swine fever ASF is a contagious viral disease that affects pigs of all ages induc- ing a haemorrhagic fever. It can appear in a variety of forms ranging from peracute acute subacute to chronic and unapparent. It is most often recognized in the.

The highly varying picture of both African swine fever ASF and hog cholera HC makes a diagnosis of either disease on mere clinical and pathological grounds often impossible particularly in subacute chronic and atypical cases. Whole blood and tonsils are the only two sample types that are approved by the USDA for the testing of African Swine Fever. The samples are tested by PCR.

Oral fluids are being investigated and may be approved soon. The virus attaches to the erythrocytes therefore any hemorrhagic tissue can be a good candidate for testing. However serum samples are not.

The highly varying picture of both African swine fever ASF and hog cholera HC makes a diagnosis of either disease on mere clinical and pathological grounds often impossible particularly in subacute chronic and atypical cases. Differences in clinical signs and post mortem lesions that might occur in acute and peracute outbreaks of the two diseases are listed. Diagnosis of chronic infections of African swine fever is problematic because the clinical signs and lesions in chronically infected pigs are highly variable.

Laboratory confirmation is essential and samples of blood spleen kidney lymph nodes and tonsils in particular should be collected for virus isolation detection of antigen or PCR testing for viral DNA. Virus isolation is carried out in swine bone. African swine fever diagnostics The virus may be found in sick animals in the blood tonsils lymph nodes spleen and liver among other places.

Antibodies soon occur in the blood. Laboratory tests are always essential to make a definitive diagnosis. Africane swine fever Clinical signs in pigs.

In a closed system sows started getting sick as first in the herd lack of apetite fever415 - 42ºC cyanosis of ears skin abortions mortality. Gradually increasing diarrhea Clinical signs similar to those observed in erysipelas differential diagnosis. Aguero M Fernandez J Romero LJ Zamora MJ Sanchez C Belak S Arias M Sanchez-Vizcaino JM.

A highly sensitive and specific gel-based multiplex RT-PCR assay for the simultaneous and differential diagnosis of African swine fever and classical swine fever in clinical samples. Diagnosis of African swine fever. Article in French Ribeiro JM.

5534961 Indexed for MEDLINE MeSH terms. African Swine Feverdiagnosis African Swine Feverpathology. On the distribution and frequency of the lesions differential diagnosis may include other haemorrhagic pig diseases such as classical swine fever or other septicaemic bacterial infections eg.

Erysipelas pasteurellosis anthrax paratyphoid and salmonellosis Plowright et al 1994. African swine fever is a highly contagious and deadly viral disease affecting both domestic and feral swine of all ages. ASF is not a threat to human health and cannot be transmitted from pigs to humans.

It is not a food safety issue. ASF is found in countries around the world particularly in sub-Saharan Africa. More recently it has spread through China Mongolia and Vietnam as well as.

African swine fever ASF is a devastating infectious disease of pigs usually deadly. No vaccine exists to combat this virus. It does not affect humans nor does it affect other animal species other than pigs and wild boars.

It can be transmitted either via direct animal contact or via dissemination of contaminated food eg. Sausages or uncooked meat. See more information on ASF here.

African swine fever virus ASFV is an enveloped double-stranded DNA virus in the family Asfarviridae and genus Asfivirus. Asfivirus is the only genus in the Asfaviridae family and over 20 genotypes of varying virulence have been recorded. ASFV is the cause of African swine fever and related diseases in porcine species.

Disease is endemic to areas of sub-Saharan Africa and the island of. ASF and CSF are fast-spreading diseases with high mortality. There are characteristic post-mortem changes with haemorrhagic lymph nodes dead patches in the spleen multiple small haemorrhages in the kidneys and so-called button ulcers in the gut.

Laboratory tests include the identification of viral antigen isolation of the virus and the presence of antibodies in serum. African swine fever is an important viral disease of pigs that has become a serious threat to worldwide pork production since 2007. African swine fever virus ASFV usually circulates in sub-Saharan Africa where it is thought to have originated in wild warthogs but has become a.

African Swine Fever ASF is a highly fatal pig disease rapidly spreading through Africa and into Europe. Control measures are poorly understood. Thus RD will focus on improved and rapid detection platforms and the use of effective prophylactic control strategies.

Background and Situation Analysis. African Swine Fever ASF is a severe contagious viral disease of domestic pigs and wild boars with. Severe cases of the disease appear very similar to African swine fever.

With low-virulence strains the only expression may be poor reproductive performance and the birth of piglets with neurologic defects such as congenital tremor The signs are indistinguishable from those of African swine fever. AFRICAN SWINE FEVER Aetiology Epidemiology Diagnosis Prevention and Control References AETIOLOGY Classification of the causative agent African swine fever virus ASFV is a DNA virus in the Asfarviridae Family. ASFV is the sole member of its Family.

Viral genotypes have been identified by sequence analysis.