Inoculation of Human Volunteers with E.C.H.O. Virus Type 20

Response of Volunteers to Inoculation with Hemagglutinin-positive and Hemagglutinin-negative Variants of Coxsackie A21 Virus.

Experimental infection of beagles with ECHO virus type 6.

Live Echo 6 virus was administered orally to six beagles previously shown by culture to be free of this agent. Some symptoms suggesting en teric disease were observed in most of the dogs. The virus was isolated from the stools of four and the blood of one, but no neutralizing antibodies could be demonstrated. Repeated intramuscular injection of live virus in six dogs produced titres as high as ...

Human papilloma virus inoculation: why only girls?

Human papilloma virus inoculation: why only girls? L.Z.G. Touyz bds msc(dent) mdent(perio and Oral med) REFERENCES 1. Teenagers with grown-up diseases [editorial]. Lancet 2008; 371:960. 2. Donovan B. Sexually transmissible infections other than hiv. Human papillomavirus (hpv)–related oropharyngeal nonkeratinizing squamous cell carcinoma: characterization of a distinct phenotype. Human papilloma...

Echo Virus Type 9 Observed in Electron

Cytopathic changes induced in tissue cultures by a variety of enteroviruses have been observed in the light microscope (1-5). Furthermore, detailed analysis by means of electron microscopy has revealed the presence of intracytoplasmic crystalline viral aggregates (6-11) as well as alterations in the fine structure of cells infected by some of these agents (12). A preliminary study of type 9 E C...

A type-C virus in human rhabdomyosarcoma cells after inoculation into NIH Swiss mice treated with antithymocyte serum.

A type-C RNA virus has been isolated that replicates readily in human and other primate cells. It was obtained from a human rhabdomyosarcoma cell (RD) that had been serially transplanted in immunosuppressed NIH Swiss mice, a strain of mouse from which infectious type-C virus has not been isolated. Various other human tumor cells, similarly transplanted, remained free of overt type-C virus expre...