نتایج جستجو برای: all animals were seronegative

تعداد نتایج: 4498294  

Journal: :E3S web of conferences 2021

The purpose of our research was to study the influence newborn calves colostral antibodies on efficiency bovine leukemia virus detection by serological methods. conducted basis agricultural organizations within territory Ural Federal District (Chelyabinsk region). We undertook comprehensive diagnostic studies fed with milk from seropositive and seronegative animals using polymerase chain reacti...

Journal: :Nigerian Journal of Life Sciences 2022

HIV(Human immunodeficiency virus) is the etiological agent that produces immunosuppression resulting in AIDS. The bacterial microbes from tears of HIV seropositive individuals were isolated and compared with those individuals. Tear samples collected 50 newly diagnosed subjects another who screened to be seronegative, all within age range 16-55 years (mean 29 ± 0.78). Bacteriological analysis in...

2010
Chanpen Chamnanpood

Sera was collected from village livestock during the vaccination trial in 21 northern Thai villages. Animals from the project database were divided into two groups. Those with 10glO serum neutralisation test (SNT) titres of < 1.2 to all three serotypes (A, 0, and Asia I) were classified as seronegative and those with a higher titre to at least one were classed as seropositive. At the start of t...

Journal: :Veterinary parasitology 2003
J P Dubey D H Graham E Dahl M Hilali A El-Ghaysh C Sreekumar O C H Kwok S K Shen T Lehmann

The prevalence of Toxoplasma gondii in free range chickens is a good indicator of the prevalence of T. gondii oocysts in the environment because chickens feed from the ground. In the present study, prevalence of T. gondii in 121 free range chickens (Gallus domesticus) and 19 ducks (Anas sp.) from a rural area surrounding Giza, Egypt was assessed. Blood, heart, and brain from each animal were ex...

Journal: :Journal of clinical microbiology 1986
A W Lievens P A Brunell

An enzyme-linked immunosorbent assay (ELISA) was evaluated for the detection of measles virus-specific immunoglobulin M (IgM) (MIgM). The ELISA was standardized by deriving a seronegative range of values from sera which should not contain MIgM (24 cord sera, 59 sera from immune health care workers, and 47 sera from infants before the administration of measles vaccine). These values were separab...

Journal: :Clinical chemistry and laboratory medicine 2012
Elle Vissers Cornelis P C de Jager Mirrian Hilbink Ron Kusters Arianne B van Gageldonk-Lafeber Peter C Wever

BACKGROUND Query fever (Q fever) is a zoonotic infection, caused by the intracellular Gram-negative coccobacillus Coxiella burnetii. From 2007 until 2010, a large Q fever outbreak has occurred in the Netherlands. We studied traditional and less common inflammation markers in seronegative and seropositive patients with acute Q fever pneumonia to identify markers that distinguish different diseas...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان 1390

during 2010-2011 a faunistic survey was carried out for collection and identification of edaphic mesostigmatic mites (acari: mesostigmata) in jiroft and suburb. mites were extracted from soil samples by berlese funnel. the mites were cleared in nesbit fluid and were mounted in hoyer medium on microscopic slides. in this study 43 spices from 26 genera and 16 families were collected and identifie...

Journal: :Bulletin of the World Health Organization 2004
Perumalsamy Vijayalakshmi Rajamanickam Anuradha Karthik Prakash Kalpana Narendran Meenakshi Ravindran Lalitha Prajna David Brown Susan E Robertson

OBJECTIVE To determine the susceptibility of female eye hospital staff to rubella infection and the potential risk for hospital-based rubella outbreaks. METHODS A prospective cohort study on the seroprevalence of rubella IgG antibodies was conducted at three large eye hospitals in Coimbatore, Madurai and Tirunelveli, Tamil Nadu, India, where young children with eye abnormalities attributable ...

Journal: :Veterinary parasitology 2004
W A Cañón-Franco L E O Yai S L P Souza L C Santos N A R Farias J Ruas F W Rossi A A B Gomes J P Dubey S M Gennari

Domestic dog (Canis domesticus) and the coyote (Canis latrans) are the only known definitive hosts for the protozoan Neospora caninum that causes abortion in dairy cattle. In the present study, antibodies to N. caninum were sought in three species of wild canids, Cerdocyon thous, Lycalopex gymnocercus and Dusicyon vetulus from Brazil. Antibodies to N. caninum were assayed by the indirect fluore...

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