Seroprevalence of Norovirus Genogroup IV Antibodies among Humans, Italy, 2010–2011

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Seroprevalence of Norovirus Genogroup IV Antibodies among Humans, Italy, 2010–2011

Noroviruses (NoVs) of genogroup IV (GIV) (Alphatron-like) cause infections in humans and in carnivorous animals such as dogs and cats. We screened an age-stratified collection of serum samples from 535 humans in Italy, using virus-like particles of genotypes GIV.1, circulating in humans, and GIV.2, identified in animals, in ELISA, in order to investigate the prevalence of GIV NoV-specific IgG a...

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Comparison of norovirus genogroup I, II and IV seroprevalence among children in the Netherlands, 1963, 1983 and 2006

Noroviruses are a major cause of acute gastroenteritis worldwide and are a genetically diverse group of viruses. Since 2002, an increasing number of norovirus outbreaks have been reported globally, but it is not clear whether this increase has been caused by a higher awareness or reflects the emergence of new genogroup II genotype 4 (GII.4) variants. The hypothesis that norovirus prevalence has...

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Detection of antibodies against norovirus genogroup GIV in carnivores.

Noroviruses (NoVs) resembling human NoV genotype GIV (Alphatron-like) have recently been detected in carnivores. By using an enzyme-linked immunosorbent assay based on baculovirus-expressed capsid protein VP1 of lion strain GGIV.2/Pistoia/387/06/ITA, NoV-specific antibodies were detected in cats (16.11%) and dogs (4.8%), demonstrating that these animals are exposed to infections caused by NoVs.

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SEROPREVALENCE OF TOXOPLASMA ANTIBODIES AMONG PREGNANT WOMEN IN KERMAN SHAH

Sera from 495 pregnant women were examined for toxoplasma antibodies by indirect fluorescent antibody testing (IFAT). Antibodies were positive in 32.7%. Seropositivity was not increased significantly with age but showed a statistically significant rise in accordance with frequency of parity, abortion and contact with cats. The high rate of seronegativity (67.3%) observed in pregnant women ...

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Identification of Genogroup I and Genogroup II broadly reactive epitopes on the norovirus capsid.

Norwalk virus, a member of the family Caliciviridae, is an important cause of acute epidemic nonbacterial gastroenteritis. Norwalk and related viruses are classified in a separate genus of Caliciviridae called Norovirus, which is comprised of at least three genogroups based on sequence differences. Many of the currently available immunologic reagents used to study these viruses are type specifi...

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ژورنال

عنوان ژورنال: Emerging Infectious Diseases

سال: 2014

ISSN: 1080-6040,1080-6059

DOI: 10.3201/eid2011.131601