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Exploratory study of antibody titers against SARS-CoV-2 using an indirect immunoperoxidase assay in COVID-19 patients and vaccinated volunteers.
Trop Med Health
September 2024
Department of General Internal Medicine and Clinical Infectious Diseases, Fukushima Medical University, Fukushima, Japan.
Background: A number of antibody test kits for detecting prior SARS-CoV-2 infection and post-immunization status have been commercialized. Indirect immunoperoxidase assay (IIP) is a conventional method to test antibodies. We evaluated the diagnostic accuracy and antibody titer profile of the IIP in COVID-19 and pre- and post-vaccination.
View Article and Find Full Text PDFMolecular screening of piroplasms and Anaplasmataceae agents in Hyalomma dromedarii ticks from camels over different seasons in Egypt.
Exp Appl Acarol
December 2024
Molecular Biology Department, Biotechnology Research Institute, National Research Centre, Giza, 12622, Dokki, Egypt.
Article Synopsis
- Piroplasmosis and anaplasmosis are diseases caused by protozoa and bacteria transmitted by ticks, specifically the Hyalomma dromedarii species found on camels in Egypt.
- A study investigated the presence of these pathogens in H. dromedarii ticks over four seasons, collecting samples from a slaughterhouse between June 2021 and April 2022.
- Results showed that 13.8% of the ticks had piroplasms (mostly Babesia bigemina) and 20.7% had Anaplasmataceae (Anaplasma marginale), with a higher detection rate for piroplasms in spring and Anaplasmataceae in summer.
The Diversity of Spotted Fever Group Found in Hard Ticks Removed from Humans in Karachay-Cherkessia, North Caucasus, Russia.
Microorganisms
June 2024
Central Research Institute of Epidemiology, 111123 Moscow, Russia.
Article Synopsis
- Karachay-Cherkessia, a region in Russia, has been under-researched concerning tick-borne bacterial pathogens, prompting this study to investigate their presence.
- Researchers collected and analyzed 159 ticks from human hosts and 53 individual ticks from vegetation, using advanced methods like qPCR and Sanger sequencing to identify the pathogens.
- The study confirmed the presence of DNA from several species of the spotted fever group and highlighted genetic diversity among the pathogens, emphasizing the need for more attention to tick-borne diseases in the area.
Spatial patterns of -borne pathogens in the Occitanie region (France), a focus on the intriguing dynamics of .
Microbiol Spectr
August 2024
ASTRE, Univ Montpellier, CIRAD, INRAE, Montpellier, France.
is an invasive tick species recently established in mainland southern France. This tick is known to host a diverse range of human and animal pathogens. While information about the dynamics of these pathogens is crucial to assess disease risk and develop effective monitoring strategies, few data on the spatial dynamics of these pathogens are currently available.
View Article and Find Full Text PDFDetection of Various Rickettsial Species in Ticks Collected from Small Ruminants in Western Iran.
Vector Borne Zoonotic Dis
November 2024
National Reference Laboratory for Plague, Tularemia and Q fever, Research Centre for Emerging and Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Kabudar Ahang, Hamadan, Iran.
Article Synopsis
- - The study examines the presence of rickettsial species in ticks and ruminants in western Iran, highlighting a lack of prior knowledge on the topic despite its clinical importance.
- - Researchers collected 250 blood samples from sheep and goats alongside 244 ticks, using advanced molecular methods like qPCR to detect rickettsial DNA, finding a significant presence of these pathogens in ticks.
- - The findings, which showed rickettsial DNA in 53.7% of the tick samples and no presence in ruminant blood, suggest a need for increased awareness and monitoring of rickettsioses in Iran's public health system.
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