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SMEDI (an acronym of stillbirth, mummification, embryonic death, and infertility) is a reproductive disease of swine caused by Porcine parvovirus (PPV) [1] and Porcine enterovirus. The term SMEDI usually indicates Porcine enterovirus , but it also can indicate Porcine parvovirus , which is a more important cause of the syndrome. [ 2 ]
The disease develops mainly when seronegative dams are exposed oronasally to the virus anytime during about the first half of gestation, and conceptuses are subsequently infected transplacentally before they become immunocompetent. There is no definitive evidence that infection of swine other than during gestation is of any clinical or economic ...
The fetal pig's digestive organs are well developed before birth, although it does not ingest food. These organs include the esophagus, stomach, small and large intestines. Mesenteries serve to connect the organs of the fetal pig together. In order for digestion to occur, the fetal pig would have to ingest food.
A vertically transmitted infection can be called a perinatal infection if it is transmitted in the perinatal period, which starts at gestational ages between 22 [24] and 28 weeks [25] (with regional variations in the definition) and ending seven completed days after birth. [24] The term congenital infection can be used if the vertically ...
Betaarterivirus suid 1, commonly Porcine reproductive and respiratory syndrome virus (PRRSV), is a virus that causes a disease of pigs, called porcine reproductive and respiratory syndrome (PRRS), also known as blue-ear pig disease (in Chinese, zhū láněr bìng 豬藍耳病).
Brucella suis is a bacterium that causes swine brucellosis, a zoonosis that affects pigs. The disease typically causes chronic inflammatory lesions in the reproductive organs of susceptible animals or orchitis, and may even affect joints and other organs. [1] The most common symptom is abortion in pregnant susceptible sows at any stage of ...
TORCH syndrome is a cluster of symptoms caused by congenital infection with toxoplasmosis, rubella, cytomegalovirus, herpes simplex, and other organisms including syphilis, parvovirus, and Varicella zoster. [1] Zika virus is considered the most recent member of TORCH infections. [2]
PED is an acute disease with an incubation period of 1-4 days. The virus causes diarrhea and vomiting resulting in severe dehydration. In neonates the mortality can be up to 100% in virulent strains. Older pigs generally recover in 7-10 days. Piglets when sick often lie in groups or lie on the mother's belly because they are cold [6]