Chlorine resistance of poliovirus isolants recovered from drinking water.
AUTOR(ES)
Shaffer, P T
RESUMO
Poliovirus 1 isolants were recovered from finished drinking water produced by a modern, well-operated water treatment plant. These waters contained free chlorine residuals in excess of 1 mg/liter. The chlorine inactivation of purified high-titer preparations of two such isolants was compared with the inactivation behavior of two stock strains of poliovirus 1, LSc and Mahoney. The surviving fraction of virus derived from the two natural isolants was shown to be orders of magnitude greater than that of the standard strains. These results raise the question whether indirect drinking water standards based on free chlorine residuals are adequate public health measures, or whether direct standards based on virus determinations might be necessary.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=291729Documentos Relacionados
- Relative resistance to chlorine of poliovirus and coxsackievirus isolates from environmental sources and drinking water.
- Round robin investigation of methods for the recovery of poliovirus from drinking water.
- Chlorine resistance patterns of bacteria from two drinking water distribution systems.
- Inactivation of poliovirus I (Brunhilde) single particles by chlorine in water.
- Potentiation of the virucidal effectiveness of free chlorine by substances in drinking water.
