Chlorine sensitivity of feline calicivirus, a norovirus surrogate. 2007

Hiroshi Urakami, and Kumiko Ikarashi, and Ko Okamoto, and Yukari Abe, and Tamami Ikarashi, and Takeshi Kono, and Yukifumi Konagaya, and Nobumasa Tanaka
College of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences (NUPALS), 265-1 Higashijima, Niigata, Niigata 956-8603, Japan. urakami@nupals.ac.jp

The sensitivity to free chlorine of feline calicivirus (FCV), a norovirus surrogate, was examined relative to chlorine demand. When a crude suspension of FCV was treated with a sodium hypochlorite solution containing 10 microg/ml free chlorine, the extent of the decrease of viral infectivity clearly depended on the volume of the reaction mixture. The apparent sensitivity of FCV to free chlorine increased with the reduction of host cell debris, indicating that chlorine demand must be minimized to know the true sensitivity of the virus. We therefore partially purified the viruses from the host cell components and found that the infectivity of FCV was reduced by more than log 4.6 by 5 min of treatment with 300 ng/ml free chlorine.

UI MeSH Term Description Entries
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D002415 Cats The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801) Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002713 Chlorine An element with atomic symbol Cl, atomic number 17, and atomic weight 35, and member of the halogen family. Chlorine Gas,Chlorine-35,Cl2 Gas,Chlorine 35,Gas, Chlorine,Gas, Cl2
D004202 Disinfectants Substances used on inanimate objects that destroy harmful microorganisms or inhibit their activity. Disinfectants are classed as complete, destroying SPORES as well as vegetative forms of microorganisms, or incomplete, destroying only vegetative forms of the organisms. They are distinguished from ANTISEPTICS, which are local anti-infective agents used on humans and other animals. (From Hawley's Condensed Chemical Dictionary, 11th ed) Biocide,Disinfectant,Biocides
D004203 Disinfection Rendering pathogens harmless through the use of heat, antiseptics, antibacterial agents, etc.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012973 Sodium Hypochlorite It is used as an oxidizing and bleaching agent and as a disinfectant. (From Grant & Hackh's Chemical Dictionary, 5th ed) Antiformin,Clorox,Sodium Hypochlorite (Solution),Hypochlorite, Sodium
D017927 Calicivirus, Feline A species of the genus VESIVIRUS infecting cats. Transmission occurs via air and mechanical contact. Feline Calicivirus

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