Typhus in breeding (feline parvovirus)

It is a severe gastroenteritis, highly contagious, often fatal, associated with marked leukopenia.
Disease caused by feline parvovirus (FPV), a naked virus that is highly resistant in the environment (several months).
Contamination is carried out orally and nasally.
The virus has a high tropism for cells with high replication (enterocytes, bone marrow cells, lymphoid organ cells): it causes cell necrosis by apoptosis, and therefore severe diarrhea, leucopenia and lymphoid depletion.

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Swimming puppy syndrom

This is a difficulty of locomotion observed in puppies from 2 to 4 weeks of age, and exceptionally in kittens that are unable to bring their limbs under them.
Although no specific cause has been isolated, several hypotheses are put forward: overweight secondary to overconsumption, unsuitable nursing zone (smooth ground without adherence or too high a temperature to promote immobility), delayed maturation of the nervous system (myelination of peripheral nerves), taurine deficiency, genetic cause, herpesvirosis, lack of selenium absorption…

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Toxic milk syndrome in the neonate (dogs and cats)

It is a bacterial infection or poisoning by puppy/kitten bacteria through breast milk.
The syndrome is common after “careless” use of antibiotics in the postpartum period (see below).
The bacteria encountered (E. Coli, hemolytic Streptococci, Staphylococcus,…) most often come from mastitis (clinical or subclinical), uterine infection (placental retention, dystocic delivery) or vaginal postpartum.

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