The objective of the study was to characterize a Gumboro disease outbreak in apoultry farm of Havana, Cuba in 2010. A population of 2959 broilers was studied. Breedingmanagement, clinical observations and anatomopathological findings were analyzed.The morbidity, mortality and lethality rates were calculated. Necropsy was done in 40 birds with signs of illness for the histopathological study of the bursa of Fabricius,thymus and spleen. The presence of virus antigens in bursal macerated was conductedby an AC-ELISA. The study showed 5.1% mortality, 8.4% morbidity, and 60.6% lethality.The most frequent clinical sign was general depression (100%) and macroscopic lesionswere hemorrhagic bursitis, edema of the bursa and nephritis (85-90%). Follicular lymphoiddepletion in bursa was found in the histopathology. The AC-ELISA showed that 82.5%of bursas were positive. Vaccination and biosecurity def...

El objetivo del estudio fue caracterizar un brote de la enfermedad de Gumboro en una granja avícola de La Habana, Cuba, en 2010. Se estudió una población de 2959 pollos de engorde, analizándose los antecedentes de crianza, observaciones clínicas y hallazgos anatomopatológicos. Se calcularon los índices de morbilidad, mortalidad y letalidad. Se realizó la necropsia a 40 aves con signos clínicos para el estudio histopatológico de la bolsa de Fabricio, timo y bazo y se determinó la presencia de antígenos virales en macerado bursal mediante un AC-ELISA. Se evidenció una mortalidad de 5.1%, morbilidad de 8.4% y letalidad de 60.6%. El signo clínico más frecuente fue la depresión general (100%)y las lesiones más frecuentes fueron bursitis hemorrágica, edema bursal y nefritis (85-90%), habiendo depleción linfoide folicular en los cortes histológicos de bolsa. El 82.5% de las ...

Toxoplasma gondii is a protozoan with a wide range of intermediate and definitive (felines) hosts and causal agent of toxoplasmosis, re-emergent zoonosis of worldwide distribution. The seroprevalence in humans in Cuba is high but the prevalence in the domestic cat in the capital city is unknown. The present study aimed to determine the seroprevalence of T. gondii in Felis catus in Havana, Cuba. A total of 300 serum samples from domestic cats were collected from 15 municipalities from October 2010 until April 2011. Samples were analysed by an ELISA Inhibition assay. Municipalities were grouped in a Central and in a Peripheral zone. The seroprevalence was 70%, without significant differences between zones and municipalities. The results allowed concluding that the seroprevalence of T. gondii in domestic cats in Havana was high, which constitutes a potential risk of infection for all hosts,...

Toxoplasma gondii is a protozoan with a wide range of intermediate and definitive (felines) hosts and causal agent of toxoplasmosis, re-emergent zoonosis of worldwide distribution. The seroprevalence in humans in Cuba is high but the prevalence in the domestic cat in the capital city is unknown. The present study aimed to determine the seroprevalence of T. gondii in Felis catus in Havana, Cuba. A total of 300 serum samples from domestic cats were collected from 15 municipalities from October 2010 until April 2011. Samples were analysed by an ELISA Inhibition assay. Municipalities were grouped in a Central and in a Peripheral zone. The seroprevalence was 70%, without significant differences between zones and municipalities. The results allowed concluding that the seroprevalence of T. gondii in domestic cats in Havana was high, which constitutes a potential risk of infection for all hosts,...