Biomaterial Database

Isolation of ether-resistant enteroviruses from sewage: methodology. 1970

M F Duff

Experiments were conducted to determine whether polio type 1 (Mahoney and coxsackie A8 viruses adsorb onto cotton fibers of sewer swabs. Negative results were obtained. It has been shown that viruses may exist in sewage as free virus particles or as bound (adsorbed) virus particles. The sewer-swab method of sampling is superior because it filters out the bound virus over several days; when collected, it represents a catch (grab) sample at that particular time which may or may not contain free virus. A simple method for the preparation of sewage inocula for virus isolations is described which samples the bound virus fraction. Only ether-resistant viruses can be isolated, and an ultracentrifuge is not required. By this method, an isolation rate between 60 and 80% of positive sewer swabs can be achieved. Corresponding figures of 84 and 96% were achieved by concentration of sewer-swab eluates with an ultracentrifuge. Quantitative studies showed that the virus concentration in raw sewage can be as high as one infectious particle per 0.5 ml.

UI	MeSH Term	Description	Entries
D008722	Methods	A series of steps taken in order to conduct research.	Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique
D003368	Gossypium	A plant genus of the family MALVACEAE. It is the source of COTTON FIBER; COTTONSEED OIL, which is used for cooking, and GOSSYPOL. The economically important cotton crop is a major user of agricultural PESTICIDES.	Cotton Plant,Cotton Plants,Gossypiums,Plant, Cotton,Plants, Cotton
D004352	Drug Resistance, Microbial	The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).	Antibiotic Resistance,Antibiotic Resistance, Microbial,Antimicrobial Resistance, Drug,Antimicrobial Drug Resistance,Antimicrobial Drug Resistances,Antimicrobial Resistances, Drug,Drug Antimicrobial Resistance,Drug Antimicrobial Resistances,Drug Resistances, Microbial,Resistance, Antibiotic,Resistance, Drug Antimicrobial,Resistances, Drug Antimicrobial
D004770	Enterovirus	A genus of the family PICORNAVIRIDAE whose members preferentially inhabit the intestinal tract of a variety of hosts. The genus contains many species. Newly described members of human enteroviruses are assigned continuous numbers with the species designated "human enterovirus".	Coxsackie Viruses,Coxsackieviruses
D004987	Ethers	Organic compounds having two alkyl or aryl groups bonded to an oxygen atom, as in the formula R1–O–R2.
D000327	Adsorption	The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily.	Adsorptions
D012722	Sewage	Refuse liquid or waste matter carried off by sewers.	Sludge,Sludge Flocs
D014871	Water Microbiology	The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms.	Microbiology, Water
D017955	Poliovirus	A species of ENTEROVIRUS which is the causal agent of POLIOMYELITIS in humans. Three serotypes (strains) exist. Transmission is by the fecal-oral route, pharyngeal secretions, or mechanical vector (flies). Vaccines with both inactivated and live attenuated virus have proven effective in immunizing against the infection.	Brunhilde Virus,Human poliovirus 1,Human poliovirus 2,Human poliovirus 3,Lansing Virus,Leon Virus,Poliovirus Type 1,Poliovirus Type 2,Poliovirus Type 3,Polioviruses

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