Antibody Prevalence and Risk Factors Associated with spp. in a Pediatric Cohort: SFGR Remains Underdiagnosed and Underreported in El Salvador.

Spotted fever group rickettsioses (SFGR) are caused by a group of tick-borne pathogens that are increasing in incidence globally. These diseases are typically underreported and undiagnosed in low- and middle-income countries, and thus, have been classified as neglected bacterial pathogens. Countries with high poverty, low human development index score, and limited health infrastructure-like El Salvador in Central America-lack necessary surveillance for SFGR and other tick-borne pathogens.

A Southwestern United States Pilot Investigation of Triatomine-Mite Prevalence.

Background: Chagas disease is a leading cause of cardiac failure in Latin America. Due to poor safety profiles and efficacy of currently available therapeutics, prevention is a priority for the millions living at risk for acquiring this clinically important vector-borne disease. Triatomine vectors of the Chagas disease parasite, are found in the southwestern United States, but risk for autochthonous transmission is thought to be low.

Human BF*F-subtypes: segregation analysis with inclusion of MHC haplotypes.

The segregation of factor B(BF)F subtypes was analyzed in conjunction with other MHC markers in 15 families with 89 offspring. Informative data for BF F subtypes were obtained from 11 families, 6 of them with known recombinant individuals for the HLA-B/DR/GLO region. The subtypes did not contribute further to the localization of the cross-overs, but followed the known segregation of conventional BF allotypes.

[HLA antibodies in retroplacental blood samples. I. Preliminary results of a screening study].

Retroplacental blood samples (between 3 ml and 290 ml) which had been obtained from 327 recently delivered women were tested for the presence of HLA-A, B, C, DR antibodies. The approaches taken by the examiners were the NIH microlymphocytotoxicity test according to Terasaki and the two-colour fluorescence test according to van Rood. The examiners established 66 sera with cytotoxic reactions, and 18 of these serum samples (5.

Results on forensic application of the C3 system.

The results of the application of the C3 system to 155 cases of disputed paternity are presented. In this preselected material (none of the 234 accused men could be excluded by any of the usual markers of red blood cells and serum) 23 men were excluded. Of these 23 exclusions, 17 could be examined in the HLA-system and were confirmed by this system.

[Comparative studies on the determination of the A-hel blood group factor in the pig by use of various lectins].

Comparable investigations of the A-hel-receptor with Anti-AHP and 6 different phytagglutinins are reported which have been tested in 305 samples of pig blood. Anti-ADb disposing of a higher specificity is recommended for determining the Hel-factor in pigs instead of Anti-AHP.

[Serological studies of cestode cysts. P1 blood-group activity in cysts of zoo animals].

The cyst fluid of cestodes from various animals kept in zoological gardens was examined for the presence of A-, B-, H- and P1-blood group activity. While the results in the ABH-system were negative, the cysts from 2 of 13 animals examined (1 elk and 1 reindeer) presented P1-blood group activity.