Twenty five freeze-dried isolates of Ornithobacterium rhinotracheale were used for the determination of minimum inhibitory concentrations (MIC) against the antibiotic fosfomycin (Fosbac, produced by Bedson SA, consisting of a 25% mixture of fosfomycin). The same isolates were tested for their ability to haemagglutinate chicken red blood cells. Ten of the 25 isolates were found to be susceptible...

1. Strains of hemolytic streptococci isolated from cases of erysipelas agglutinate in a high percentage of instances with erysipelas immune sera. When agglutination occurs with one serum, the strain usually agglutinates with all other erysipelas sera. 2. Erysipelas immune sera agglutinate strains from erysipelas in a higher percentage of instances than they agglutinate scarlatinal strains. 3. S...

A specific agglutination of Plasmodium knowlesi detectable both by macroscopic and by microscopic methods is described. Agglutinins for Plasmodium knowlesi appear in the sera of monkeys between 15 and 45 days after the onset of the infection and become progressively stronger as the malarial infection gradually subsides. Agglutinins persist in the sera of chronically infected animals for a year ...

Agglutination and rosette formation are in vitro characteristics of Plasmodium falciparum-infected erythrocytes, which have been associated with host protective immune responses and also with parasite virulence. The present study was carried out in an area of seasonal and unstable malaria transmission in eastern Sudan. Plasma samples were obtained before, during, and after the transmission seas...

The nature of the forces of attraction between cells and viruses is of obvious interest; and although erythrocytes probably are not the cells of primary importance in influenza virus infections, the attractive forces between them and influenza virus provide an experimental approach to the problem. Previous reports presented data which indicate that the effect of influenza virus upon erythrocyte...

Artemisinin is a good antimalarial drug independently developed in China. It highly effective and low toxic. In the process of studying mechanism artemisinin drugs, we found that there was agglutination when drugs came into contact with blood. Methods: ABO positive typing test card used to detect reaction dihydroartemisinic whole blood, red blood cells, hemolytic solution, hemin chloride, ferro...

A lectin (BanLec-I) from banana (Musa paradisiac) with a binding specificity for oligomannosidic glycans of size classes higher than (Man)6GlcNAc was isolated and purified by affinity chromatography on a Sephadex G-75 column. It did not agglutinate untreated human or sheep erythrocytes, but it did agglutinate rabbit erythrocytes. BanLec-I stimulated T-cell proliferation. On size-exclusion chrom...

Cells disaggregated from slugs of Dictyostelium discoideum were cultured in Bonner's salt solution in roller tubes. Cells rapidly stuck together to form an amorphous loose agglutinate which was later transformed into a spheroidal tight agglutinate surrounded by slime sheath material. Prespore cells in the loose agglutinate underwent partial dedifferentiation by starting to decompose their speci...