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Biomedical subjects

I Nestor

Publications and source records attributed to I Nestor.

35 records · Page 2Linked to original sources
PubMedDate not supplied

[Conditions of inactivation of viruses in water with chlorination].

Spread within the environment, especially in water, of enteral pathogens has stimulated the greatest interest and raised many problems that have not yet been fully elucidated. Of particular importance is the possibility of inactivating enteroviruses by chlorinating water. The antiviral disinfection of water by chlorination has proved efficient under the conditions mentioned, lowering the incidence of water-borne viral diseases.

Chlorine↗
PubMedDate not supplied

Investigations on the presence of enteroviruses in drinking water.

Out of 220 tap-water samples examined, 3.64% were found to contain enteroviruses. The 11 isolates included 3 attenuated poliovirus, 2 Coxsackie A4 and 6 untyped strains. The necessity of improving the treatment of drinking water, especially by disinfection, is outlined.

Enterovirus↗
PubMedDate not supplied

[Microbiological and physicochemical indicators of viral contamination of the drinking water].

The paper reviews the connection between the human viruses and some common sanitary indicators of drinking water contamination. An analysis is made of: physico-chemical indicators (water turbidity, residual chlorine, some products of the bacterial metabolism in the intestine), bacterial indicators (total and faecal coliforms, Escherichia coli, faecal streptococci, clostridia and other intestinal anaerobic bacteria, saprophytic mycobacteria, Pseudomonas aeruginosa) and some bacteriophages. The conclusion is drawn that if such indirect indicators of water faecal pollution are generally useful in sanitary-microbiological assessment of drinking water, for finding its viral pollution, in certain epidemiological and hygiene-sanitary situations the virologic examination of the drinking water is quite compulsory.

Bacteria↗
PubMedDate not supplied

Some health implications of the occurrence of enteric viruses in water and soil.

A brief review is given of the virological, epidemiological and hygiene and public health aspects of the occurrence of enteric viruses in water and soil. Data are summarized as regards: detection and survival of viruses in different types of water and in the soil, the characteristics of the transmission and the minimum infective dose of enteric viruses, reports on waterborne epidemic outbreaks of virus diseases. The necessity of establishing standards for the virus monitoring of waters and for the virus quality of drinking or recreational water is discussed. Considerations is given to the possible use of some indicators of enteric viruses in water. The different treatment procedures allowing removal of viruses from wastewater or from surface waters used as potable water sources are critically discussed.

Disease Outbreaks↗
PubMedDate not supplied

Viral pollution of the Argeş as compared with that of other rivers in Romania.

The presence of human viruses was investigated in the water and sediments of the Argeş river. On the whole viral pollution was low, being somewhat higher downstream the confluence with the Dîmboviţa river. No enteroviruses were found in the Argeş water drawn for drinking water supply upstream this source of viral pollution.

Romania↗
PubMedDate not supplied

[Several health problems caused by viral contamination of sea water].

The occurrence of human viruses in the marine environment offers a vast domain of research and reflection. In this respect many findings concerning the degree of seawater viral contamination and its health implications have been accomplished. The present report synthetizes some public health aspects in connection with the viral pollution of seawater on the beaches frequented for swimming or villegiature. There are mainly envisaged the detection frequency of enteric viruses in seawater, the epidemiological aspects of this phenomenon and the virus persistence in the marine environment. A particular attention is granted to the problem of the seawater viral selfpurification.

Humans↗