Astrovirus survival in drinking water

Astrovirus survival in drinking water.

A method based on infection of CaCo-2 cultured cell monolayers (CC) and reverse transcription-PCR (RT-PCR) was developed for the specific detection of infectious astrovirus. The procedure was validated by titrating poliovirus stocks in parallel in CaCo-2 cells by determining the most probable number of cytopathogenic units and by cell culture and subsequent RT-PCR (CC-RT-PCR). CC-RT-PCR was the...

Drinking water in schools.

Children do not drink enough during the school day--and the resulting dehydration contributes to continence problems (Box 1). One important part of treating these problems is an adequate and regular fluid intake during the day (Haines et al, 2000). However, it is not uncommon for pupils to go six or seven hours without a single drink, and those who do drink usually drink less than they need (Al...

Fluoride in Drinking Water

Contaminants in drinking water.

An adequate supply of safe drinking water is one of the major prerequisites for a healthy life, but waterborne disease is still a major cause of death in many parts of the world, particularly in children, and it is also a significant economic constraint in many subsistence economies. The basis on which drinking water safety is judged is national standards or international guidelines. The most i...

Radioactivity in some sachet drinking water samples produced in Nigeria

Background: Activity concentrations of 40K, 226Ra and 228Ra were measured in some sachet drinking water samples produced in Nigeria. Materials and Methods: The measurement was done by using high-purity germanium (HPGe) detector (Canberra Industries Inc.). The measured activity concentrations for 226Ra (U-series) and 228Ra (Thseries) were used with their ingested dose conversion factors ...