to study the humoral immune response to entamoeba histolytica infection, sera prepared from different cases of amoebiasis from gastroenterology ward of b.h.u hospital, including15 cases with amoebic liver abscess (ala), 10 cases with acute amoebic dysentery (ad) and 10 controls were examined by enzyme linked immuno sorbent assay (elisa), using crude amoebic antigen prepared from entamoeba histo...

in the present study the distribution of rubella hemagglutination inhibition (hi) antibody titer in the sera of 1486 women of 18 to 25 years old residing in tehran were examined. sera were pretreated with acid washed kaolin and pigeon red blood cell. titers below 1:10 and in some studies below 1:20 are considered nonimmune to rubella. our results show that 10, 29% of studied population had hi a...

background: the specific antibody response against newcastle disease virus (ndv) in the blood serum of chickens hatched from eggs exposed to low dose gamma-radiation was studied. materials and methods: two groups of eggs of commercial meat chicken lines were irradiated with the dose of 0.30 gy 60co gamma-rays before incubation and on the 19th day of incubation, respectively. the same number of ...