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O Zavate

Publications and source records attributed to O Zavate.

At least 37 records · Page 2Linked to original sources

Epidemic outbreak of Coxsackie virus meningitis. Note II. Virological and serological investigations.

Virological and serological investigations of the viral meningitis cases recorded in a county of Romania in the summer of 1975 demonstrated that in a certain zone (A) the prevalent etiological agent was Coxsackie B3 virus. This virus could be isolated from the feces, exudate or cerebrospinal fluid of some diseased children. At the same time, the appearance of neutralizing antibodies to Coxsackie B3 virus or significant titer increases were observed in 20 of the 25 children tested serologically in zone A.

Antibodies, Viral↗

Studies of bacterial, rotaviral and Cryptosporidium etiology of acute diarrheal diseases in hospitalized children.

657 hospitalized children with acute diarrheal disease were studied for bacterial and rotaviral etiology. Cryptosporidium presence was followed in 123 children. Intestinal pathogens were detected in 195 (29.6%) cases: 132 (20.3%) enterobacteria, 47 (7.1%) rotaviruses, 4 (3.2%) Cryptosporidium sp. and 12 (1.8%) combined infections. Among enterobacteria, E. coli was the most frequent (10% cases) with enteropathogenic (EPEC), enterotoxigenic (ETEC), enterohemorrhagic (EHEC) and enteroinvasive (EIEC) groups. Other isolated pathogens were Salmonella--21 (3.1%), C. jejuni/coli--13 (1.9%), Shigella--3 (0.9%), Y. enterocolitica O3--1 (0.1%). Among opportunistic pathogenic enterobacteria, the following were isolated: Kl. pneumoniae--24 (3.7%), Enterobacter species--4 (0.6%), Providencia alcalifaciens--1 (0.1%). Aeromonas hydrophila was isolated in 1 child. Combined infections were detected in 12 children: 10--enterobacteria + rotaviruses associations and 2--pathogenic enterobacteria associations.

Acute Disease↗

[The presence of enterovirus in species of shellfish and fish].

Enteroviruses were isolated from 12% of the digestive tract samples collected from Anodonta cygnea (9.4%) and Dreysena polymorpha (13.2%) shell species and from 8.4% of the branchiae sample from fish species Rutilus rutilus, Perca fluviatilis and Silurus glanis. The isolated belonged to the following antigenic types: ECHO 2 and 7, Coxsackie B 2, 4 and 6, and poliovirus 1 and 2.

Animals↗

[Clinico-epidemiologic and laboratory studies of patients with primary hepatocellular carcinoma].

The investigations carried out in 92 patients with confirmed diagnosis of primitive hepatocellular carcinoma (HCC) have demonstrated that in almost half of them hepatitis was present in their antecedents, indicating the intervention of hepatitis virus in the etiology of this disease. In this context, the primary prophylaxis of primitive HCC is mainly based on the prophylaxis and control of viral hepatitis. As the interval detection-death was in most cases very short (1-2 month), the secondary prophylaxis consisting in performing more of the investigations recommended for the early diagnosis of primitive HCC is essential.

Age Factors↗

[Enzymatic aspects of severely acute diarrheal disease in infants].

Acute dehydration of diarrhoea of the breast-fed child is a type of hypovolemic shock which, by its severity and frequency is one of the major emergencies of pediatrics. The liver, as the site of many metabolic processes is mainly affected in the frame of the multiple-tissue involvement which is characteristic for this condition. The authors carried out a study of several enzymes (total LDH and the thermally-labile fraction, gluthamatdehydrogenase, gammaglutamyltranspeptidase, acid and alkaline phosphatase) in 27 breast-fed children. Determination of the enzymes was done on hospitalization, and 10 days later. The study showed that all the enzymes that were evaluated had moderate increases in 40.7-71% of all cases. The increases were significant (p less than 0.001). After 10 days the enzyme titers showed a tendency to become normal again, and slightly higher values were found in only 15-12% of all cases. Minimal hepatopathy can be considered, associated to the clinico-biological evolution of this severe conditions of the breast-fed child pathology.

Acid Phosphatase↗

[Detection of the rotavirus group antigen by a screening test using the ELISA-IC kit in subjects with acute gastroenteritis, at the pediatric services of Moldavia].

The rotaviral antigen was detected by a screening test using the ELISA-IC kit in 17.6% out of 415 children with acute gastroenteritis. The highest frequency (28.9%) was found in children hospitalized in pediatric services with a diagnosis of diarrhoeic disease associated to acute respiratory infection. The rotavirus infection incidence was about three times higher during the cold season than during summer (30.4% versus 10.5%). The 6-11 month age group was the most severely affected.

Acute Disease↗

[Mixed viral-bacterial infections in infants with gastroenteritis].

Fecal specimens from 84 children with gastroenteritis were submitted to virological and bacteriological analysis. Enteroviruses other than poliovirus were found in 8.3%, rotavirus in 4.8% and enterobacteria in 1.9% of the investigated subjects. Mixed infections were detected in 8.4% of the cases.

Diarrhea, Infantile↗

[Presence of the rotavirus antigen in newborn infants at maternity hospitals in Moldavia].

Studies conducted on 417 feces samples collected from newborn infants from seven maternity homes revealed the presence of rotavirus in 1.2 to 9.5% of the subjects. The infants get infection during the first 24 to 48 hours of life (1.8%) and the positivity rate reaches a peak the 7th day (9.7%). Enteroviruses were found in 3.4% and enterobacteria in 11.8% of the samples.

Aging↗

Surveillance of enterovirus circulation in children communities.

In three children communities covered by a virological study enteroviruses could be isolated from 19.3% of the stool samples, 52.3% of the sewage samples and 9.7% of the samples taken from different objects and surfaces. The isolates belonged to 14 enterovirus serotypes, Coxsackie viruses being predominant. There was a good concordance between the serotypes of enteroviruses shed in the stools and those isolated from the environment. The high epidemiological potential of enteroviruses calls for a surveillance of their circulation in children communities, preferably by the virological monitoring of sewage.

Child↗