Two antigen preparations, the soluble antigen and a fraction 1 thereof, isolated in the course of a systematic study of the various antigens of the virulent gonococcus, have been investigated for their ability to serve as antigens for the detection of antibody in patients infected with the gonococcus. The soluble antigen was reactive with 88.2% of the sera from infected females, and fraction 1 ...

BACKGROUND The simultaneous detection of antigen and antibody was originally described for the early detection of the human immunodeficiency virus (HIV). The same approach was applied to detect the hepatitis C virus (HCV). The aim of this work was to use the antigen and antibody combination assay for the detection of HCV and HIV infections in expatriates in Eastern Saudi Arabia. METHODOLOGY T...

A highly sensitive method for the detection of avian influenza virus (AIV) antigen by the resonance light scattering (RLS) technique has been developed in this paper. Magnetic silica nanoparticles (MNs) were modified with AIV antibody via covalent binding firstly, the MNs/AIV antibody-AIV antigen immunocomplex was formed after the addition of AIV antigen, which can increase the RLS signal at 54...

Hepatitis B surface antigen (HBs antigen) was examined for elicitation of IgE production by injection into mice. The Prausnitz-Küstner (PK)-type skin test in the rat was employed for detection of IgE antibody to HBs antigen, because no sufficient purified HBs antigen was available as the challenging antigen for the passive cutaneous anaphylaxis (PCA) test in rats. The positive PK test was consi...

BACKGROUNDS: Diseases affecting the respiratory tract of sheep and goats are one of the most important factors which limit production of these species on a world-wide basis. OBJECTIVES: The main goal of this study was to determine Adenovirus (AdV) antigen in formalin-fixed paraffin-embedded lung tissue of pneumonic goats, using immunohistochemistry (IHC) staining method. METHODS: For this purpo...

background: cervical cancer is one of the most common types of women’s reproductive cancers. a major risk factor for cervical cancer is exposure to a group of common sexually transmitted viruses called human papillomavirus  (hpv). the over expression of hpv 16 i.e., e6 antigen in the tumors of suspected cervical cancer tissues. however e-6 antigen has hyaluronan binding protein site. methods: t...

We report here a simple and economical slide agglutination test, the co-agglutination (Co-A) test, for the detection of circulating amebic antigen in sera for the diagnosis of amebic liver abscess. Fifty serum specimens from cases of amebic liver abscess, 25 from other individuals with parasitic and miscellaneous infections, and 25 from healthy controls were tested for the presence of serum ant...

Background: Respiratory tract infections caused by some viruses with cattle origin have been demonstrated in sheep and goats. OBJECTIVES: The main goal of this study was to determine Bovine Herpes virus type 1 BHV1antigen in formalin-fixed paraffin-embedded lung tissue of pneumonic sheep, using immunohistochemistry (IHC) staining method. METHODS: For this purpose, the lungs of 4079 sheep, which...

For effective management of typhoid, diagnosis of the disease must be done with speed and accuracy. Development of such a test would require antigens that are specific for typhoid diagnosis. Attempts at finding the specific antigen have been carried out throughout the years. The finding of such an antigen can lead to carrier detection as well. Candidate antigens have been used in the developmen...