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E Pozio

Publications and source records attributed to E Pozio.

196 records · Page 11Linked to original sources
PubMed1983

Leishmaniasis in Tuscany (Italy): VIII. Human population response to leishmanin in the focus of Monte Argentario (Grosseto) and epidemiological evaluation.

A skin test survey carried out in the towns of Porto St. Stefano and Porto Ercole showed a total positivity rate of 15.3%. The progressive increase of positivity according to age was not uniform but similar for the two towns since the values concerning the last two age groups did not follow the general trend of the graph but were lower than expected. The possible causes of this phenomenon have been discussed. The absence of overt visceral leishmaniasis cases in recent years and the concomitant high prevalence of canine leishmaniasis have been considered in the light of the occurrence of infectious diseases and the increase of the nutritional levels in the local human population.

Animals↗
PubMed1983

Leishmaniasis in Sardinia: an introductory note.

Preliminary data on a project planned in Sardinia for the epidemiological study of leishmaniases are presented. Twenty-six dogs were found infected in the south-western part of the island. Nine isolates were successfully stabilated . In a canine leishmaniasis focus on the outskirts of Cagliari, Phlebotomus perniciosus was the predominant sandfly species (95%). In the same area, 28 specimens of Rattus norvegicus were trapped and their spleen homogenate was injected into hamsters. No Leishmania has yet been isolated.

Animals↗
PubMed1982

[Enzymatic typing of 11 strains of Leishmania isolated in mainland Italy from the visceral murine, canine and vulpine forms. Demonstration of an enzymatic variant in the fox (Vulpes vulpes) and the dog].

Enzyme typing by starch gel electrophoretic techniques was carried out on 11 Leishmania isolates from Italy in laboratories in Montpellier and London. The enzymes studied in the former were ME, G-6-PD, 6-PGD, PGM, PGI, GOT (= ASAT), MDH and IDH. In London slightly different procedures were used to examine ME, 6-PGD, PGM, PGI and ASAT. In addition, SOD, ALAT, NH, and MPI were studied. The combined data revealed that four Rattus rattus and four dogs were infected with classical L. infantum (zymodème 1). In addition, two other dogs and a fox were infected with an enzyme variant (zymodème 18) which differed in four of the 12 enzymes examined. These findings raise the question of the heterogeneity of the parasites causing visceral leishmaniasis.

Animals↗
PubMed1981

Leishmaniasis in Tuscany (Italy): VI. Canine leishmaniasis in the focus of Monte Argentario (Grosseto).

The results of a survey of canine leishmaniasis in the coastal focus of Monte Argentario (Tuscany, Italy) are reported. Of the 171 dogs examined, 41 (23.9%) were positive in the fluorescent antibody test (FAT), but only 12 (7.0%) were positive by microscopic observation of lymphatic ganglia. Of the 41 FAT positive dogs, 17 (10.0%) showed signs of the disease. The evolution of leishmaniasis over one year from the first examination showed that 88.0% of the dogs with signs died of the disease, and 36.0% of the asymptomatic dogs became patent or died; 52.0% of the asymptomatic dogs had apparently recovered. The prevalence of the disease, the geographical, age, sex and race distribution of cases, the evolution of leishmaniasis in dogs and FAT positivity are discussed.

Animals↗
PubMed1980

Leishmaniasis in Tuscany (Italy): (II) Leishmania from wild Rodentia and Carnivora in a human and canine leishmaniasis focus.

From April 1977 to February 1978, wild mammals were trapped in a focus of low leishmanial endemicity (Baccinello) in the Province of Grosseto (Tuscany, Italy). Spleen homogenates of the trapped animals were injected i.p. into hamsters, from which spleen biopsies were taken after 60 days and impression smears carefully observed for the presence of Leishmania. Positive spleens were subinoculated into hamsters. 404 animals of 12 species were trapped: 31 insectivores, 317 rodents and 56 carnivores. Black rats (Rattus rattus) and field mice (Apodemus sylvaticus) were the rodent species most frequently trapped--160 and 139 respectively--of which 143 and 134 respectively were tested in hamsters for Leishmania. 35 foxes (Vulpes vulpes) were caught, of which 16 were tested for Leishmania. Four hamsters were found infested with Leishmania. Three of them had been injected with spleen homogenates from R. rattus and one from V. vulpes although liver and spleen impression smears of all trapped animals were negative for Leishmania on direct microscopical examination. The significance of Leishmania infection in wild animals in the leishmanial focus of Baccinello is discussed.

Animal Population Groups↗
PubMed1980

[Filariasis in foxes in the Province of Grosseto].

A total of 350 foxes were examined in Grosseto province (Tuscany) and 68 (19,4%) have been found positive for microfilariae. The examination for adult forms has been carried out on a restricted number of foxes; one specimen of Dirofilaria repens has been found. The distribution of parasitosis and the presence of mosquito species, as possible vectors, has been discussed.

Animals↗
PubMedDate not supplied

Cryptosporidium: different behaviour in calves of isolates of human origin.

The behaviour in calves of 3 Cryptosporidium human isolates was analysed in comparison with a bovine isolate. Twenty-four neonatal calves were infected. An isolate from a patient infected with human immunodeficiency virus (HIV) and showing mild cryptosporidiosis caused severe diarrhoea with a high production of oocysts in neonatal calves, as did a bovine isolate (group 1). Two human isolates, obtained from HIV patients with severe cryptosporidiosis, caused mild diarrhoea with low oocyst production in neonatal calves (group 2). The difference between the 2 groups in numbers of oocysts shed in calves was statistically significant (P = 0.005), as was the duration of oocyst shedding (P = 0.0004). Oocysts of group 2 isolates were less resistant to storage in 2% potassium dichromate at 4 degrees C than were oocysts of group 1. The biological and epidemiological implications are discussed.

AIDS-Related Opportunistic Infections↗
PubMedDate not supplied

Trichinella pseudospiralis outbreak in France.

Four persons became ill with trichinellosis after eating meat from a wild boar hunted in Camargue, France. Nonencapsulated larvae of Trichinella pseudospiralis were detected in meat and muscle biopsy specimens. The diagnoses were confirmed by molecular typing. Surveillance for the emerging T. pseudospiralis should be expanded.

Adult↗
PubMedDate not supplied

Human herpesvirus-8 and other viral infections, Papua New Guinea.

We studied residents of remote villages and the capital (Port Moresby) of Papua New Guinea to determine the distribution of human herpesvirus-8 (HHV-8) infection. Our data suggest that HHV-8 has been endemic on the island for a long time and that the epidemiologic pattern of HHV-8 is more similar to that of herpes simplex virus-2 than hepatitis C virus.

Adult↗
PubMedDate not supplied

Detection of Cryptosporidium circulating antigens in human and calf sera.

Cryptosporidium-specific circulating antigens were detected in sera of experimentally infected calves and AIDS patients by an enzyme-linked immunosorbent assay. Antigenemia was detectable from 2 to a minimum of 22 days post-infection (d.p.i.) in calves whose feces were parasitologically positive from 2-10 d.p.i. Antigenemia was detected in AIDS patients showing no a sero-conversion to immunoglobulin (Ig) M or to IgG. The detection of circulating antigens in humans allows early diagnosis of cryptosporidiosis, even in immunosuppressed patients.

Animals↗