Leptospira interrogans, serovar copenhageni, isolated from a dog in Belo Horizonte, Brasil.

A cepa de leptospira Cf-1 (LT- 63-72), isolada da urina de um cao com sinais clinicos compativeis com leptospirose, foi identificada pelo teste de absorcao de aglutininas como sendo identica ao sorovar copenhageni, do grupo Icterohaemorrhagiae.Este foi o primeiro isolamento de leptospira de cao no Estado de Minas Gerais, e a primeira vez que foi identificado este sorovar no Brasil

Infections with Encephalitozoon cuniculi and Leptospira interrogans, serovars grippotyphosa and ballum, in a kennel of foxhounds.

Leptospira interrogans serovars grippotyphosa and ballum were isolated from kidney and urine of an American Foxhound pup. The pup was from a litter of 12, all of which were unthrifty. Titers for serovar grippotyphosa in pups from the litter ranged from 200 to 6,400 and 23 of 36 adult dogs in the kennel had titers to that serovar. None of the sera was tested for antibodies to serovar ballum. Leptospires were not isolated from or observed in 2 littermates and 1 penmate, but gram-positive organisms morphologically compatible with Encephalitozoon cuniculi were detected in their brains and kidneys.

Two new leptospiral serovars in the Javanica group isolated in Brazil.

Dois novos sorovares de leptospira no sorogrupo Javanica sao descritos. As cepas Aa-3 e Aa-4, que sao identicas, foram isoladas do comundongo-do-campo-sulamericano (Akodon arviculoides) no municipio de Itaguai, Estado do Rio de Janeiro, Brasil. A cepa Rr-5 foi isolada de rato de casa (Rattus rattus), capturado na mesma area. Os nomes fluminense, cepa Aa-3, e rio, cepa Rr-5 foram propostos. A importancia das especies portadoras e enfatizada

Two new leptospiral serovars in the Hebdomadis group isolated from cattle in Brazil.

Two leptospiral serovars belonging to the Hebdomadis Serogroup are described. These strains are represented by two isolations from apparently healthy zebu cattle. It is proposed that the serovars be designated guaicurus strain Bov. G and goiano strain Bov. 131.

Pathogenic leptospira isolates from the Caribbean Islands of Trinidad, Grenada and St. Vincent.

All known isolates of Leptospira interrogans obtained in Trinidad, Grenada and St. Vincent up to the end of 1979 are listed. There were 80 from Trinidad, 20 from Grenada and 2 from St. Vincent, representing at least 20 serotypes from 11 or more serogroups. Six of the serotypes were first reported from Trinidad. The leptospires were isolated from man, domestic animals and wildlife species.

Pathogenic leptospira isolates from the Caribbean Islands of Trinidad, Grenada and St. Vincent

All known isolates of Leptospira interrogans obtained in Trinidad, Grenada and St. Vincent up to the end of 1979 are listed. There were 80 from Trinidad, 20 from Grenada and 2 from St. Vincent, representing at least 20 serotypes from 11 or more serogroups. Six of the serotypes were first reported from Trinidad. The leptospires were isolated from man, domestic animals and wildlife species.(AU)

Leptospirosis in wildlife in Brazil: isolation of serovars canicola, pyrogenes and grippotyphosa.

The isolation of serovar canicola from the Norway rat (Rattus norvegicus), shows that it is a reservoir of canicola and is therefore significant from an epidemiological point of view. The isolation of pyrogenes and grippotyphosa from a water rat, Nectomys squamipes is also described.

Leptospirosis in dogs and cats on the Island of Trinidad: West Indies.

Confirming previous observations on dog populations in other parts of the world, notably Japan, the Philippine Islands, and some countries in South America, we found that a high percentage of dogs in Trinidad are infected with organisms from many serogroups of Leptospira. Serogroups Canicola and Icterohaemorrhagiae were most commonly found. Ten isolates obtained from 50 kidneys from stray dogs (20% infectivity rate) were typed as portland-vere (six) and canicola (two) of the Canicola serogroup, copenhageni of the Icterohaemorrhagiae serogroup (one), and georgia in the Hebdomadis serogroup (one). To the best of our knowledge, this is the first record of a serotype in the Hebdomadis serogroup being isolated from a dog. A cat isolation was identified as canicola. Serological results showed that 55% or more of stray dogs had been exposed as opposed to only 12.5% of the cats examined. Serogroups Canicola, Icterohaemorrhagiae and Hebdomadis are found most frequently in dogs, cats, mongooses, and man in Trinidad.

Leptospirosis in dogs and cats on the island of Trinidad: West Indies

Concerning previous observations on dog populations in other parts of the world, notably Japan, the Phillippine Islands, and some countries in South America, we found that a high percentage of dogs in Trinidad are infected with organisms from many serogroups of Leptospira. Serogroups Canicola and Icterohaemorrhagiae were most commonly found. Ten isolates obtained from 50 kidneys from stray dogs (20 percent infectivity rate) were typed as portland-vere (six) and canicola (two) of the Canicola serogroup, copenhageni of the Icterohaemorrhagiae serogroup (one), and georgia in the Hebdomadis serogroup (one). To the best of our knowledge, this is the first record of a serotype in the Hebdomadis serogroup being isolated from a dog. A cat isolation was identified as canicola. Serological results show that 55 percent or more of stray dogs had been exposed as opposed to only 12.5 percent of the cats examined. Serogroups Canicola, Icterohaemorrhagiae and Hebdomadis are found most frequently in dogs, cats, mongooses, and man in Trinidad. (AU)

Four new leptospira serotypes from Trinidad

This paper reports four new Leptospira serotypes from the West Indian island of Trinidad. They are princetown and navet from humans, caribe from Rattus, and mangus from the mongoose, herpestes auropunctatus (AU)

Evaluation of an indirect hemagglutination test for the diagnosis of human leptospirosis.

A presumptive hemagglutination test for the serological diagnosis of leptospirosis in humans is described. The antigen was prepared from a soluble alcohol extract of an andamana strain sorbed to human O-negative erythrocytes and preserved by pyruvic aldehyde fixation. In this study, the overall sensitivity of the hemagglutination test was 92% in contrast to 69% for the presumptive slide agglutination test. The specificity was 95% for the hemagglutination test in comparison with 83% for the slide test.

Leptospirosis in wildlife in Brazil: isolation of a new serotype in the pyrogenes group.

A new leptospiral serotype in the serogroup Pyrogenes is described. The strain was isolated from one gray "four-eyed" opossum (Philander opossum). It is proposed that the serotype be designated guaratuba, strain An-7705. The isolations of serotypes ballum from the South American field mouse (Akodon arviculoides), szwajizak and icterohaemorrhagiae from the North American opossum (Didelphis marsupialis), and grippotyphosa from many other wild animal species as well as domesticated animals are also described.