680 I T 15 A MAT1ER of common observation than an asthmatic attack in children will often start with what appear to be symptOlTls#{176} of a “COl(I, i.e., coryza or upper respiratory infection. It was early noted by one of us1 that while, in some instances, the onset of the asthmatic attack coincided with the onset of these symptoms, there was more often a variable interval of time, occasionall...

background and aims: infectious bronchitis virus (ibv) is the etiological agent of infectious bronchitis (ib), which is an acute and highly contagious disease of the respiratory and sometimes the urogenital tracts of chickens. in iran, the disease has been identified in chicken flocks with serological and virus isolation methods. gene 3c (e) encode envelop (small membrane) protein. for envelope...

background and aims: infectious mononucleosis (im)is the clinical manifestation of primary infection with epstein-barr virus (ebv). humans are the only known reservoir of ebv. regarding the problems in diagnosis of the disease, the purpose of this study was to assess enzyme-linked immunosorbent assay (elisa) and nested polymerase chain reaction (pcr) as a diagnostic tool for this disease. mater...

purpose : infectious corneal ulceration is a serious potential complication of prk. although gram positive organisms are the most common pathogens, in this study we present the first case of gram negative bacilli keratitis, alcaligenes, after prk. case report : a 22-year-old man was referred to our institution due to infection following corneal refractive surgery. three days after surgery, the ...

in the present study, 360 male day-old broiler chicks were used to determine the effect of mixed livevaccines of newcastle disease (nd) and infectious bronchitis (ib) on serum and local antibody responses toib. chicks were randomly divided into 12 treatment groups of 3 replicates and reared for 40 days on floorpens. groups 1 to 5 received mixed nd and ib vaccine. groups 7 to 11 received ib vacc...

infectious bronchitis virus (ibv) is a contagious pathogen in fowl that results in economic loss in the poultry industry. in this study, the amino acids sequences of three structural proteins m, n, and s1 for five iranian ibv isolated during 1998-2011 have been analyzed. conserved and variable regions, hydrophobic characteristics and identity matrix were determined after alignment by bioedit ve...

introduction: regarding the cross contamina-tion, prevention from infection is of high prior ity. the aim of this research was assessment of knowledge and attitude of dental students toward infection control in endodontics depart ment of faculty of dentistry, babol uni versity of medi cal sciences. materials and methods: the study was accom plished among 8th, 10th and 12th grade dental students...

an indirect enzyme–linked immunosorbent assay (elisa) was developed for screening of antibody to avian infectious bronchitis virus (ibv). antigen was prepared from whole-purified ibv massachusetts serotype (br 801 strain). optimum dilution with minimum background for antigen concentration, rabbit anti-chicken conjugate and sera in developed elisa was determined 0.1μg/ml, 1:3000 and 1:100, respe...

infectious bursal disease virus (ibdv) infects young chickens and causes serious lose to the poultry industry, worldwide. previous attempts using purified bacterially expressed ibdv vp2 failed to elicit a protective immune response to the virus. this study was designed to investigate if the initial expressed protein contained neutralizing epitopes but became nonfunctional during purification st...

Ninety-six strains of influenza A and 113 influenza B were found in the two MRC/PHLS surveys. In the general practitioner survey the majority of strains were isolated from cases diagnosed as influenza but in hospital most came from cases diagnosed as having other respiratory infections. In the latter survey isolation rates were higher in upper respiratory tract infection than in lower ones but ...