Molecular evidence to suggest pigeon ‐type Chlamydia psittaci in association with an equine foal loss

In this study, we describe the detection and molecular characterization of C. psittaci in a case of equine abortion in southern Queensland. Equine placenta and fresh liver and lung tissue from the necropsied foetus were positive by C. psittaci‐specific qPCR. Chlamydia psittaci‐specific multilocus sequence typing and ompA genotyping were used to further characterize the detected equine strains and an additional strain obtained from a dove from a different geographic region presenting with psittacosis. Molecular typing of this case revealed that the infecting equine strains were closely related to the C0sittaci detected in dove, all belonging to an evolutionary lineage of C. psittaci strains typically associated with infections of pigeons globally. This finding suggests a broader diversity of C. psittaci strains may be detected in horses and in association with reproductive loss, highlighting the need for an expansion of surveillance studies globally to understand the epidemiology of equine chlamydiosis and the associated zoonotic risk.
Source: Transboundary and Emerging Diseases - Category: Veterinary Research Authors: Tags: SHORT COMMUNICATION Source Type: research

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Publication date: Available online 11 December 2019Source: Methods in MicrobiologyAuthor(s): Sukhadeo B. Barbuddhe, Jess Vergis, Deepak B. RawoolAbstractBrucellosis, caused by Brucella species, is a neglected, under reported and under recognized infection of worldwide distribution. Owing to its greater economic and zoonotic importance, control of brucellosis is a priority target set forth by the WHO and development agencies. The genus Brucella is comprised of 12 species. The four main species infecting humans and livestock populations include B. melitensis, B. abortus, B. suis, and B. canis. Brucellosis is a cause of acute...
Source: Methods in Microbiology - Category: Microbiology Source Type: research
Infection of humans by the larval stage of the tapeworms Echinococcus granulosus sensu lato or Echinococcus multilocularis causes the life-threatening zoonoses cystic echinococcosis (CE) and alveolar echinococcosis (AE). Although cystic liver lesions are a hallmark of both diseases, course, prognosis, and patients’ management decisively differ between the two. The wide and overlapping spectrum of morphologies and the limited availability of ancillary tools are challenges for pathologists to reliably diagnose and subtype echinococcosis. Here, we systematically and quantitatively recorded the pathologic spectrum in a c...
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
This study was carried out to explore the genetic characterization and its phylogenetic analysis of circulating Leptospira species, among the Aligarh region of western Uttar Pradesh in India, utilizing secY gene-based nucleotide sequence. A total of 190 human samples were included in the study. Positive samples were identified by ELISA, MAT and PCR. MAT was carried out utilizing local circulating Leptospira serovars. Four positive samples including two MAT positive samples were subjected to DNA sequencing for further confirmation and phylogenetic tree was constructed. Out of the total of 190 samples, 24 patients were found...
Source: Pathogens and Global Health - Category: International Medicine & Public Health Tags: Pathog Glob Health Source Type: research
Lower respiratory tract infections, such as infections caused by influenza A viruses, are a constant threat for public health. Antivirals are indispensable to control disease caused by epidemic as well as pandemic influenza A. We developed a novel anti-influenza A virus approach based on an engineered single-domain antibody (VHH) construct that can selectively recruit innate immune cells to the sites of virus replication. This protective construct comprises two VHHs. One VHH binds with nanomolar affinity to the conserved influenza A matrix protein 2 (M2) ectodomain (M2e). Co-crystal structure analysis revealed that the com...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Foods may potentially serve as vehicles for the transmission of antimicrobial-resistant variants of Staphylococcus aureus that are important in a human clinical context. Further, retail food products can be a cause of staphylococcal food poisoning. For these reasons and to account for source attribution and risk assessment, detailed information on the population structure, resistance, and virulence profiles of S. aureus originating from retail food products is necessary. In the current study, whole-genome sequences from 88 S. aureus isolates were subjected to bioinformatics analyses in relation to sequence types, antimicro...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In this study, we generated two recombinant RABVs, rERAG333E/NiVG and rERAG333E/NiVF, expressing the NiV Malaysian strain attachment glycoprotein (NiV-G) or fusion glycoprotein (NiV-F) gene based on the rERAG333E vector platform. Both rERAG333E/NiVG and rERAG333E/NiVF displayed growth properties similar to those of rERAG333E and caused marked syncytia formation after co-infection in BSR cell culture. Adult and suckling mice intracerebrally inoculated with the recombinant RABVs showed NiV-G and NiV-F expression did not increase the virulence of rERAG333E. Oral vaccination with rERAG333E/NiVG either singularly or combined wi...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
Conclusions: A significant increase (P = .02) in Lyme arthritis cases was observed at Oishei Children's Hospital of Buffalo. Lyme arthritis may clinically present similarly to other forms of arthritis, such as oligoarticular juvenile idiopathic arthritis, so health care providers should be aware of distinguishing clinical features, which include rapid onset of swelling and patient age. Because the geographic area of endemic Lyme disease is expanding, all health care providers need to be aware of Lyme arthritis as a possible diagnosis. PMID: 31819695 [PubMed]
Source: Clinical Medicine Insights: Arthritis and Musculoskeletal Disorders - Category: Orthopaedics Tags: Clin Med Insights Arthritis Musculoskelet Disord Source Type: research
Conclusion: Vulnerable populations were found to be less knowledgeable on risk factors and they had poor practice. Education had significant impact on knowledge and attitude of urban population; however, their practice did not improve with education. PMID: 31815581 [PubMed - as supplied by publisher]
Source: Ocular Immunology and Inflammation - Category: Allergy & Immunology Tags: Ocul Immunol Inflamm Source Type: research
In 2018, the number of bacterial sexually transmitted infections (STIs) reported in the United States reached an all-time high. This is worrisome for many reasons. Having an STI can raise risks for HIV, infertility, pregnancy complications, and infant death. Fortunately, all of these outcomes can be avoided if people receive appropriate treatment. What are STIs? STIs are illnesses caused by microorganisms passed between people during sex. An STI can affect anyone who is exposed to it. Syphilis, gonorrhea, and chlamydia are the most common bacterial infections. Trichomoniasis, a protozoan infection, is also diagnosed freque...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Adolescent health HIV Men's Health Relationships Sexual Conditions Women's Health Source Type: blogs
A number of birds at a commercial farm in Suffolk were found to have the H5 strain of avian flu, the Department for Environment, Food and Rural Affairs said on Tuesday.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news
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