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italian experience in salmonella spp. isolations from 1973 to 1986.a total of 150,072 strains of salmonella were isolated in italy over a 14-year period. the strains from humans, food, animals and from environmental samples reached the national centre for enterobacteria in rome and the interregional centres for enterobacteria in milan, palermo and pisa to be characterized according to their serotype. s. typhimurium was the most frequently isolated serotype from both humans and food in nearly all the years considered. pork was the source most frequently found to ...19892654574
a molecular study of salmonella strains identified from two food-poisoning outbreaks.a molecular epidemiology study was carried out on salmonella mbandaka and salmonella corvallis strains identified from two food-poisoning outbreaks which occurred in august 1985 in pistoia and in october 1985 in sant'ilario d'enza (re). all the salmonella mbandaka strains were plasmid-free; all the epidemic salmonella corvallis strains, in contrast to the non epidemic isolates, carried a small plasmid of approximately 2 mda molecular weight. restriction enzyme cleavage pattern analysis revealed ...19873041182
distribution of salmonella typhi and salmonella paratyphi b phage types in italy from 1974 through 1985.the temporal changes in occurrence and distribution in salmonella typhi and paratyphi b phage types in italy during a twelve year period are considered. from 1974 to 1985, 2.075 isolates of salmonella typhi and 830 isolates of salmonella paratyphi b were phage typed at the national centre for enterobacteria in rome and the three regional centres for enterobacteria in milan, palermo and pisa. the most prevalent types of salmonella typhi were a, c1, d1, vi degraded strains e1, i+iv and c4. types a ...19883127661
[studies on the spread of new salmonella serotypes in the province of pisa in the past 2 years]. 19744448333
[epidemiological remarks on the "s. arizonae" strains isolated from various animals in tuscany during 1969-1978 (author's transl)].after a review of the taxonomic history of the genus arizona culminated in the insertion of these bacteria in the kauffmann-white schema, the most significant references concerning their pathogenicity and occurrence are related. in this paper, the outbreaks and sporadic cases by s. arizonae which occurred in tuscan area during 1969-1978 are reported; between several animal species, turkeys were found frequently infect and the same serotype (s. arizonae 18:z4,z32:-) was identified. the epidemiolo ...19807195690
mutagenicity and chemical analysis of airborne particulate matter collected in pisa.the genotoxic effects of airborne particulate samples collected from two urban areas during various traffic intensity levels were evaluated using the yeast saccharomyces cerevisiae (d7 strain) and salmonella typhimurium (ta98 and ta100 strains). standard protocols were used, in compliance with recent legislation. airborne particulate data reveal that genotoxic effects were more evident in the samples collected in the area with intense moving traffic than in the area with limited traffic. particu ...19979275995
species, biotype and serogroup of campylobacter spp. isolated from children with diarrhoea over a ten-year period.from 1981 to 1990, stool samples from 6403 gastroenteritis cases were examined for the presence of campylobacters as well as salmonella, shigella, aeromonas species and yersinia enterocolitica. the percentages of isolation were the following: campylobacters 10.8 (86.1% of isolates were c. jejuni and 13.9% were c. coli), salmonella spp. 8.4, aeromonas spp 1.4, yersinia enterocolitica 0.3. shigella spp. were isolated only occasionally. predominant biotypes of campylobacters were c. jejuni i (69.5% ...19979385599
[the phage typing and pulsed electrophoretic characterization of salmonella enteritidis strains isolated in tuscany]. 199910596441
cluster of cases of salmonella enterica serotype rissen infection in a general hospital, italy, 2007.in 2007, three strains of salmonella enterica serotype rissen (s. rissen) were isolated in the laboratory of diagnostic microbiology of the general hospital of prato, tuscany, italy, over a 1 month and half interval of time. the first isolate was recovered on january 26 from an outpatient with enteritis. then, two strains were isolated on february 16 and march 11 respectively, from central venous catheters of patients who were being hospitalized in two departments of the hospital. an epidemiolog ...201019912602
contaminated commercial dehydrated food as source of multiple salmonella serotypes outbreak in a municipal kennel in tuscany.the authors describe a large outbreak of canine salmonellosis in a municipal kennel in tuscany. during the outbreak, 174 samples of 'diarrhetic' and 'normal' faeces and two batches of commercial dehydrated dog food were cultured for pathogenic bacteria. the results of 25, out of a total of 41 dogs (60.9%) revealed at least one faecal sample as being positive for salmonella; incidence per sampling ranged from 12.5% to 34%. nine of 10 samples of dehydrated food were positive. ten totally different ...201121706471
molecular study on salmonella enteritidis strains from a nosocomial gastroenteritis outbreak.a molecular epidemiological analysis was carried out on s. enteritidis isolates identified at the central italy enterobacteriaceae center during 1986. 26 of these were from a diarrhoeal disease outbreak, which occurred in the period april-june at the "s. chiara" hospital, pisa. all s. enteritidis strains harboured a virulence-encoding 39 mda plasmid. the nosocomial isolates made in june 1986 carried an additional non-conjugative plasmid of 75 mda, associated with the streptomycin-resistance. in ...19883066372
mutagenicity of airborne particles from a nonindustrial town in italy.the mutagenic activity of airborne particulate matter collected in pisa, a small nonindustrial town located in italy, has been monitored over 1 year using the ames salmonella test. airborne particulate was collected on fibreglass filters using a hi-vol sampler and extracted by sonication and soxhlet acetone extraction in sequence. ta 98 and ta 100 salmonella strains gave positive results with the great majority of samples. the mutagenicity trend fits with a harmonic regression with a peak during ...19892468490
[salmonella in the province of livorno. epidemiological study over the last five years].the authors refer on salmonella species isolated from carriers, in usl 13 country, during the period of five years 1984-1988 in the microbiological laboratories of s.m.p. usl 13. n. 1240 salmonella strains were isolated. n. 62 serotypes have been recognized of which about 77% were of the groups b, c1, e1. the trial shows a high positivity of more rare serotypes especially in summer period.19902102120
[screening for salmonella in pregnancy].national and regional health authorities advise a stool culture in pregnant women before term in order to detect salmonella carriers, prevent the spread of this microorganism to the newborn and avoid outbreaks of this infection in the nurseries. the tuscany section of the italian association of obstetricians and gynecologists decided to test the usefulness of this salmonella screening. in 7431 pregnant women at the 36th week a stool sample was examined for the presence of salmonella. the occurre ...19947885614
mutagenic activity and chemical analysis of airborne particulates collected in pisa (italy). 19947511445
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