South African Tick Bite Fever: An Overview

The rickettsiae are a diverse group of vector-borne zoonotic bacterial pathogens. The two common spotted fever diseases in existence in southern Africa are boutonneuse fever-like tick bite fever (TBF), caused byRickettsia conorii, and African TBF, caused byR. africae. This review addresses demographic, epidemiological, clinical, diagnostic, therapeutic, and preventive aspects of TBF in the southern African context, including a discussion of the dermatopathological findings and potential diagnostic pitfalls.Dermatopathology 2019;6:70 –76
Source: Dermatopathology - Category: Pathology Source Type: research

Related Links:

The article published in 2013 [1] described the use of the availableBrachyspira multilocus sequence typing (MLST) scheme [2] to characterize the population structure of the intestinal spirocheteBrachyspira pilosicoli. It used sequences of seven loci that were amplified from 131 strains that had been isolated from different geographical origins and species.
Source: Gut Pathogens - Category: Microbiology Source Type: research
Conclusions/SignificanceThe current study provides further evidence of a human reservoir for invasive non-Typhoidal Salmonella (iNTS) in sub-Saharan Africa.
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
In this study, we detected for just the second time a SINV infection in a diseased wild bird (common wood pigeon) from Central Europe. SINV was isolated by cell culture and the complete SINV genome sequence was determined. Phylogenetic analyses revealed a close affiliation to SINV genotype I with a high similarity to human isolate sequences from Finland, Sweden and Russia. The isolate was genetically distinct from the first avian isolate suggesting the circulation of at least two different SINV strains in Germany.In order to reveal the infection frequency in SINV positive mosquito regions 749 bird blood samples were assaye...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
ConclusionThis investigation indicated that cocktail DNA vaccine encoded SAG1 gene of T. gondii and FliC can protect against acute toxoplasmosis.
Source: Biologicals - Category: Biology Source Type: research
AbstractToxoplasmosis is a zoonotic food-borne disease with global distribution. The principal aim of this research was to detect the seroprevalence ofT. gondii infection in cattle, dogs and cats in dairy farms with high incidence of abortion, as well as to identify associated risk factors in Hamedan, Iran. A number of four large dairy farms with high history of abortion were selected and evaluated for risk factors associated toT. gondii infection. Blood samples were taken from 400 of pregnant cattle, 85 of dogs and 35 of cats (all of the dogs and cats population from interring and around of farms were sampled). The sample...
Source: Journal of Parasitic Diseases - Category: Parasitology Source Type: research
Publication date: Available online 10 October 2019Source: Comparative Immunology, Microbiology and Infectious DiseasesAuthor(s): Rasha M.A. Gharieb, Elshaima M. Fawzi, Ibrahim ElsohabyAbstractAntimicrobial resistance profile of E. coli and Salmonella serovars isolated from diarrheic calves and handlers in Egypt is unknown due to the absence of monitoring. Therefore, this study aimed to determine the virulence, genetic and antimicrobial resistance profiles of E. coli and Salmonella serovars associated with diarrhea in calves and handlers in intensive dairy farms in Egypt. A total of 36 bacterial strains (20 E. coli and 16 S...
Source: Comparative Immunology, Microbiology and Infectious Diseases - Category: Infectious Diseases Source Type: research
Publication date: Available online 10 October 2019Source: Comparative Immunology, Microbiology and Infectious DiseasesAuthor(s): Marc. K. Kouam, Herman M.F Biekop, Bridget Katte, Alexis TeguiaAbstractSalmonella infections in poultry farms are overlooked in many African countries; yet these infections are mostly zoonotic with impact on both poultry industry and public health. Considering the impact of Salmonella in laying hens, and the role of laying hens as a source of Salmonella outbreak in human, knowledge of the status of Salmonella on laying hen farms as well as the factors influencing the presence of Salmonella is imp...
Source: Comparative Immunology, Microbiology and Infectious Diseases - Category: Infectious Diseases Source Type: research
Trichinellosis is a globally-distributed zoonotic parasitic disease caused by nematode worms of the genus Trichinella. One of the most common species of Trichinella known to affect human health is T. britovi; however, it is relatively poorly investigated. A thorough knowledge of the proteins expressed by Trichinella is important when developing immunological detection methods and vaccines and studying its interactions with the host. The present study uses the Pichia pastoris expression system to produce a soluble TbCLP antigen which induces strong antibody responses in the host during natural infection. Our results demonst...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
e Yi Tian Poultry farmers face a dual risk when mutant avian influenza (AI) virus exhibits zoonotic characteristics. A/H5N1 and A/H7N9 are two principal strains of the AI virus that have captured public attention in recent years, as they have both been reported and can infect poultry and humans, respectively. Previous studies have focused either on poultry farmers’ risk perception and biosecurity preventive behaviors (BPBs) against A/H5N1 infection with poultry, or on their risk perception and personal protective behaviors (PPBs) against human infection with A/H7N9, even though these two strains often appea...
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
Publication date: Available online 9 October 2019Source: International Journal for Parasitology: Parasites and WildlifeAuthor(s): Xiao Xiao, Rui Qi, Hui-Ju Han, Jian-Wei Liu, Xiang-Rong Qin, Li-Zhu Fang, Chuan-Min Zhou, Xiao-Qing Gong, Si-Cong Lei, Xue-Jie YuAbstractSnakes are popular as food and traditional medicine in China. However, information about parasitic and bacterial infections in snakes from China is scarce. We investigated the prevalence of selected zoonotic agents including Cryptosporidium, Hepatozoon and Spirometra, in snakes in central China from June to October in 2018 by PCR amplification using parasite-sp...
Source: International Journal for Parasitology: Parasites and Wildlife - Category: Parasitology Source Type: research
More News: African Health | Dermatology | Epidemiology | Pathology | South Africa Health | Zoonoses