Results 51 to 60 of about 3,884 (159)

Prevalence and risk factors for murine typhus, scrub typhus and spotted fever group rickettsioses among adolescent and adult patients presenting to Yangon General Hospital, Yangon, Myanmar

Tropical Medicine &International Health, Volume 30, Issue 9, Page 966-977, September 2025.
Abstract Objectives To inform patient management and disease prevention, we sought to estimate the prevalence of, and identify risk factors for, scrub typhus, murine typhus, and spotted fever group rickettsioses (SFGR) among febrile patients presenting to hospital in Myanmar.
Thomas R. Bowhay, Tin Ohn Myat, Win Thandar Oo, Hla Kye Mone, Katrina J. Sharples, Matthew T. Robinson, Mayfong Mayxay, Paul N. Newton, Stuart D. Blacksell, Ampai Tanganuchitcharnchai, James E. Ussher, David R. Murdoch, Wah Win Htike, John A. Crump   +13 more
wiley   +1 more source

Serosurveillance of Orientia tsutsugamushi and Rickettsia typhi in Bangladesh [PDF]

The American Society of Tropical Medicine and Hygiene, 2014
Scrub and murine typhus infections are under-diagnosed causes of febrile illness across the tropics, and it is not known how common they are in Bangladesh. We conducted a prospective seroepidemiologic survey across six major teaching hospitals in Bangladesh by using an IgM enzyme-linked immunosorbent assay.
Rapeephan R. Maude, Richard J. Maude, Aniruddha Ghose, M. Robed Amin, M. Belalul Islam, Mohammad Ali, Md Shafiqul Bari, Mrinmoyee Majumder, Ampai Tanganuchitcharnchai, Arjen M. Dondorp, Daniel Paris, Robin L. Bailey, M. Abul Faiz, Stuart D. Blacksell, Nicholas Day   +14 more
openaire   +3 more sources

Estimating scrub typhus and murine typhus incidence among adolescents and adults in Yangon, Myanmar

Tropical Medicine &International Health, Volume 30, Issue 9, Page 978-986, September 2025.
Abstract Objectives Rickettsioses are frequent causes of treatable febrile illness in Southeast Asia, including Myanmar. Accurate estimates of the incidence of rickettsioses are needed to inform investments in disease prevention and control. We sought to estimate the incidence of rickettsioses among adults and adolescents by combining sentinel hospital
Win Thandar Oo, Thomas R. Bowhay, Tin Ohn Myat, Wah Win Htike, Kay Thi Lwin, Stuart D. Blacksell, Ampai Tanganuchitcharnchai, Mayfong Mayxay, Paul N. Newton, Matthew T. Robinson, James E. Ussher, David R. Murdoch, Hla Hla Win, John A. Crump   +13 more
wiley   +1 more source

Molecular Detection of Rickettsia typhi in Cats and Fleas

PLoS ONE, 2013
Rickettsiatyphi is the etiological agent of murine typhus (MT), a disease transmitted by two cycles: rat-flea-rat, and peridomestic cycle. Murine typhus is often misdiagnosed and underreported. A correct diagnosis is important because MT can cause severe illness and death. Our previous seroprevalence results pointed to presence of human R.
Nogueras, Maria-Mercedes, Pons, Immaculada, Ortuño Romero, Anna M., Miret, Jaime, Pla, Júlia, Castellà Espuny, Joaquim, Segura, Ferran   +6 more
openaire   +5 more sources

Optimization of heat inactivation protocols for Orientia and Rickettsia species

Scientific Reports
Heat treatment, or thermal disinfection, is one of the simplest and most widely used methods for microbial inactivation. Proper heat inactivation protocols are essential to ensure the safe transportation and handling of infectious materials, particularly
Artharee Rungrojn, Mohammad Yazid Abdad, Sandhya Dhawan, Jantana Wongsantichon, Stuart D. Blacksell   +4 more
doaj   +1 more source

Persisting Rickettsia typhi Causes Fatal Central Nervous System Inflammation. [PDF]

Infect Immun, 2016
ABSTRACTRickettsioses are emerging febrile diseases caused by obligate intracellular bacteria belonging to the familyRickettsiaceae. Rickettsia typhibelongs to the typhus group (TG) of this family and is the causative agent of endemic typhus, a disease that can be fatal. In the present study, we analyzed the course ofR. typhiinfection in C57BL/6 RAG1−/−
Osterloh A, Papp S, Moderzynski K, Kuehl S, Richardt U, Fleischer B.   +5 more
europepmc   +4 more sources

Investigation of Anti‐IgG Antibody Responses to the 17‐kDa Outer Membrane Protein of Rickettsia japonica in Individuals From a High‐Risk Area for Japanese Spotted Fever

Experimental Dermatology, Volume 34, Issue 7, July 2025.
ABSTRACT This study evaluated the seroprevalence and persistence of IgG antibodies against Rickettsia japonica's outer membrane protein (Omp) using a recombinant 17‐kDa antigen and Western blot analysis in residents of Minamiise, Japan—a high‐incidence Japanese spotted fever (JSF) area—and in individuals from non‐endemic regions.
Makoto Kondo, Koji Habe, Keiichi Yamanaka   +2 more
wiley   +1 more source

Distribution of different Rickettsia species in countries of the WHO Eastern Mediterranean (WHO-EMRO) region: An overview

Travel Medicine and Infectious Disease
Subject: Rickettsia is a zoonotic bacterial pathogen transmitted by vectors and has extensive reservoirs in animal and human populations. Rickettsiosis is a public health problem all over the world.
Shahin Seidi, Amir Hossein Omidi, Saber Esmaeili   +2 more
doaj   +1 more source

Increased Seroprevalence of Typhus Group Rickettsiosis, Galveston County, Texas, USA

Emerging Infectious Diseases, 2023
Whether increases in typhus group rickettsiosis in Galveston County, Texas, USA, are caused by increased recognition or true reemergence is unclear. We conducted a serosurvey that demonstrated Rickettsia typhi antibodies increased from 1.2% in 2013 to 7.
Lucas S. Blanton, Maria A. Caravedo Martinez, Nicole Mendell, Alejandro Villasante-Tezanos, David H. Walker, Donald Bouyer   +5 more
doaj   +1 more source

Development of Antisense Tools to Study Bodo saltans and Its Intracellular Symbiont

MicrobiologyOpen, Volume 14, Issue 2, April 2025.
Obligate symbioses present challenges for functional genetic analysis. This study shows that antisense inhibition cannot be used to investigate gene functions in the aquatic symbiosis between Bodo saltans and its bacterial symbiont. Our work stresses the importance of the development of alternative protocols to study the biology of both the ...
Mastaneh Ahrar, Lorna Glenn, Marie Held, Andrew Jackson, Krzysztof Kus, Gregory D. D. Hurst, Ewa Chrostek   +6 more
wiley   +1 more source