نتایج جستجو برای: asymptomatic infections

تعداد نتایج: 325330  

2013
Luisa Barzon Monia Pacenti Elisa Franchin Silvana Pagni Enrico Lavezzo Laura Squarzon Thomas Martello Francesca Russo Loredana Nicoletti Giovanni Rezza Concetta Castilletti Maria Rosaria Capobianchi Pasquale Salcuni Margherita Cattai Riccardo Cusinato Giorgio Palù

Human cases of West Nile virus (WNV) disease have been reported in Italy since 2008. So far, most cases have been identified in north-eastern Italy, where, in 2012, the largest outbreak of WNV infection ever recorded in Italy occurred. Most cases of the 2012 outbreak were identified in the Veneto region, where a special surveillance plan for West Nile fever was in place. In this outbreak, 25 ca...

Journal: :PLoS ONE 2008
James M. McCaw James G. Wood Christopher T. McCaw Jodie McVernon

BACKGROUND Wide-scale use of antiviral agents in the event of an influenza pandemic is likely to promote the emergence of drug resistance, with potentially deleterious effects for outbreak control. We explored factors promoting resistance within a dynamic infection model, and considered ways in which one or two drugs might be distributed to delay the spread of resistant strains or mitigate thei...

Journal: :Sexually transmitted infections 2004
N Low A McCarthy J Macleod C Salisbury P J Horner T E Roberts R Campbell A Herring S Skidmore E Sanford J A C Sterne G Davey Smith A Graham M Huengsberg J Ross M Egger

BACKGROUND Screening has been recommended to reduce the prevalence and morbidity associated with genital chlamydia infection in the United Kingdom. METHODS We describe the rationale and study design of the Chlamydia Screening Studies (ClaSS), a collaborative project designed to evaluate screening outside genitourinary medicine clinics. A non-selective, active screening approach in 16-39 year ...

2014
Agustina Rimondi Silvina Pinto Valeria Olivera Marina Dibárbora Mariano Pérez-Filgueira María Isabel Craig Ariel Pereda

Infection of poultry with chicken anemia virus (CAV) is implicated in several field problems in broiler flocks due to the immunosuppression generated and, consequently, the increased susceptibility to secondary infections. Recently, we have reported an increased occurrence of clinical cases caused by CAV strains distantly related to those commonly used for vaccination. In order to understand th...

2013
Magelda Montoya Lionel Gresh Juan Carlos Mercado Katherine L. Williams Maria José Vargas Gamaliel Gutierrez Guillermina Kuan Aubree Gordon Angel Balmaseda Eva Harris

Four dengue virus serotypes (DENV1-4) circulate globally, causing more human illness than any other arthropod-borne virus. Dengue can present as a range of clinical manifestations from undifferentiated fever to Dengue Fever to severe, life-threatening syndromes. However, most DENV infections are inapparent. Yet, little is known about determinants of inapparent versus symptomatic DENV infection ...

Journal: :American journal of human biology : the official journal of the Human Biology Council 2011
Rebecca Langford Peter Lunn Catherine Panter-Brick

OBJECTIVE We conducted a longitudinal study to assess the impact of a hand-washing intervention on growth and biomarkers of child health in Nepali slums. This is the first study to evaluate the impact of hand-washing on markers of subclinical, asymptomatic infections associated with childhood growth faltering. METHODS We recruited a total sample of infants in the target age-range (3-12 months...

2014
Benjawan Khuntirat In-Kyu Yoon Malinee Chittaganpitch Whitney S. Krueger Krongkaew Supawat Patrick J. Blair Shannon D. Putnam Robert V. Gibbons Darunee Buddhari Pathom Sawanpanyalert Gary L. Heil John A. Friary Gregory C. Gray

BACKGROUND Pandemic influenza A(H1N1)pdm09 emerged in Thailand in 2009. A prospective longitudinal adult cohort and household transmission study of influenza-like illness (ILI) was ongoing in rural Thailand at the time of emergence. Symptomatic and subclinical A(H1N1)pdm09 infection rates in the cohort and among household members were evaluated. METHODS A cohort of 800 Thai adults underwent a...

2013
Oleg Mediannikov Cristina Socolovschi Sophie Edouard Florence Fenollar Nadjet Mouffok Hubert Bassene Georges Diatta Adama Tall Hamidou Niangaly Ogobara Doumbo Jean Bernard Lekana-Douki Abir Znazen M’hammed Sarih Pavel Ratmanov Herve Richet Mamadou O. Ndiath Cheikh Sokhna Philippe Parola Didier Raoult

This study aimed to compare the epidemiology of Rickettsia felis infection and malaria in France, North Africa, and sub-Saharan Africa and to identify a common vector. Blood specimens from 3,122 febrile patients and from 500 nonfebrile persons were analyzed for R. felis and Plasmodium spp. We observed a significant linear trend (p<0.0001) of increasing risk for R. felis infection. The risks wer...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2005
Charlotte K Kent Janice K Chaw William Wong Sally Liska Steven Gibson Gregory Hubbard Jeffrey D Klausner

BACKGROUND The Centers for Disease Control and Prevention developed screening and diagnostic testing guidelines for chlamydia and gonorrhea at urethral, rectal, and pharyngeal sites for men who have sex with men (MSM). However, in most clinical settings, rectal chlamydial testing is not performed for MSM, and primarily sexually transmitted disease (STD) clinics alone perform routine rectal and ...

Journal: :The Indian journal of medical research 2007
Sasirekha Ramani Gagandeep Kang

Rotavirus is the major cause of severe dehydrating diarrhoea in young children worldwide. Considerable research has been carried out on rotavirus disease in India. This review collated data from 46 epidemiological studies to determine rotavirus positivity rates and genotypes of infecting rotavirus strains from various settings in India. Studies on diarrhoea presenting to hospitals, neonatal rot...

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