Results 21 to 30 of about 14,284,870 (172)

Risk1, a Phosphatidylinositol 3-Kinase Effector, Promotes Rickettsia typhi Intracellular Survival

mBio, 2020
To establish a habitable intracellular niche, various pathogenic bacteria secrete effectors that target intracellular trafficking and modulate phosphoinositide (PI) metabolism.
Oliver H. Voss, Joseph J. Gillespie, Stephanie S. Lehman, Sherri A. Rennoll, Magda Beier-Sexton, M. Sayeedur Rahman, Abdu F. Azad   +6 more
doaj   +1 more source

GroEL is an immunodominant surface-exposed antigen of Rickettsia typhi

PLoS ONE, 2021
Rickettsioses are neglected and emerging potentially fatal febrile diseases that are caused by obligate intracellular bacteria, rickettsiae. Rickettsia (R.) typhi and R.
Jessica Rauch, Jessica Barton, Marcel Kwiatkowski, Malte Wunderlich, Pascal Steffen, Kristin Moderzynski, Stefanie Papp, Katharina Höhn, Hella Schwanke, Susanne Witt, Ulricke Richardt, Ute Mehlhoop, Hartmut Schlüter, Verena Pianka, Bernhard Fleischer, Dennis Tappe, Anke Osterloh   +16 more
doaj   +2 more sources

Severe Rickettsia typhi Infections, Costa Rica

Emerging Infectious Diseases, 2023
Murine typhus is a febrile, fleaborne disease caused by infection with Rickettsia typhi bacteria. Cases can range from mild and nonspecific to fatal. We report 2 cases of murine typhus in Costa Rica, confirming the presence and circulation of R.
Diana Chinchilla, Inés Sánchez, Ida Chung, Arlyn N. Gleaton, Cecilia Y. Kato   +4 more
doaj   +1 more source

Evaluation of the Widal tube agglutination test for the diagnosis of typhoid fever among children admitted to a rural hdospital in Tanzania and a comparison with previous studies. [PDF]

, 2010
BACKGROUND: The diagnosis of typhoid fever is confirmed by culture of Salmonella enterica serotype Typhi (S. typhi). However, a more rapid, simpler, and cheaper diagnostic method would be very useful especially in developing countries.
Deen Jacqueline L, Malahiyo, Rajabu, Deen, Jacqueline L, Wilfing, Harald, Amos, Ben, Stephen Magesa, Hendriksen, Ilse, Kamala Thriemer, Wilfing Harald, Lorenz von Seidlein, Clemens John D, George Mtove, Magesa Stephen, Thriemer Kamala, Shaali M Ame, Ochiai Leon R, Hendriksen Ilse, Reyburn Hugh, Deok R Kim, Clemens, John D, von Seidlein Lorenz, Aikande Shoo, von Seidlein, Lorenz, Ley Benedikt, Ben Amos, Ilse Hendriksen, Mwambuli Abraham, Abraham Mwambuli, Kim Deok R, Leon R Ochiai, Mwambuli, Abraham, Ochiai, Leon R, Shoo Aikande, Kim, Deok R, Jacqueline L Deen, Ley, Benedikt, John D Clemens, Ame, Shaali M, Harald Wilfing, Malahiyo Rajabu, Hugh Reyburn, Benedikt Ley, Shoo, Aikande, Reyburn, Hugh, Rajabu Malahiyo, Mtove George, Thriemer, Kamala, Amos Ben, Mtove, George, Magesa, Stephen, Ame Shaali M   +50 more
core   +2 more sources

Molecular identification of Rickettsia typhi and R. felis in co-infected Ctenocephalides felis (Siphonaptera: Pulicidae)

, 2022
Rickettsia typhi and R. felis, 2 closely related rickettsial species, often have been identified in cat fleas, Ctenocephalides felis (Bouche) from the same geographical location.
Azad, Abdu F., Noden, Bruce H., Higgins, James A., Radulovic, Suzana   +3 more
core   +1 more source

Rickettsia typhi possesses phospholipase A2 enzymes that are involved in infection of host cells.

PLoS Pathogens, 2013
The long-standing proposal that phospholipase A2 (PLA2) enzymes are involved in rickettsial infection of host cells has been given support by the recent characterization of a patatin phospholipase (Pat2) with PLA2 activity from the pathogens Rickettsia ...
M Sayeedur Rahman, Joseph J Gillespie, Simran Jeet Kaur, Khandra T Sears, Shane M Ceraul, Magda Beier-Sexton, Abdu F Azad   +6 more
doaj   +1 more source

Detección de Rickettsia typhi en Rhipicephalus sanguineus s.l. y Amblyomma mixtum en el sur de México

Salud Pública de México, 2020
Objetivo. Determinar la presencia de Rickettsia typhi en Rhipicephalus sanguineus s.l. y Amblyomma mixtum, en el sur de México. Material y métodos. Las garrapatas fueron colectadas en humanos y animales domésticos.
Armando Ulloa-García, Karla Dzul-Rosado, Sergio E Bermúdez-Castillero, Noé López-López, Jorge Aurelio Torres-Monzón   +4 more
doaj   +1 more source

Typhus Group Rickettsiosis, Germany, 2010–2017

Emerging Infectious Diseases, 2018
Typhus group rickettsiosis is caused by the vectorborne bacteria Rickettsia typhi and R. prowazekii. R. typhi, which causes murine typhus, the less severe endemic form of typhus, is transmitted by fleas; R.
Jessica Rauch, Philip Eisermann, Bernd Noack, Ute Mehlhoop, Birgit Muntau, Johannes Schäfer, Dennis Tappe   +6 more
doaj   +1 more source

Rickettsia typhi as Cause of Fatal Encephalitic Typhus in Hospitalized Patients, Hamburg, Germany, 1940–1944

Emerging Infectious Diseases, 2018
We evaluated formalin-fixed paraffin-embedded tissue specimens from 7 patients who died with encephalitic typhus in Hamburg, Germany, during World War II.
Jessica Rauch, Birgit Muntau, Petra Eggert, Dennis Tappe   +3 more
doaj   +1 more source

Epidemic multiple drug resistant Salmonella Typhimurium causing invasive disease in sub-Saharan Africa have a distinct genotype [PDF]

, 2009
Whereas most nontyphoidal Salmonella (NTS) are associated with gastroenteritis, there has been a dramatic increase in reports of NTS-associated invasive disease in sub-Saharan Africa. Salmonella enterica serovar Typhimurium isolates are responsible for a
Clarke, L., Molyneux, M., Molyneux, Malcolm, MacLennan, CA, Molyneux, Malcom E., Gordon, M. A., Kariuki, Samuel, Cormican, M., Parkhill, J, Holt, Kathryn E., Thomson, N., Kingsley, Robert, Harris, D., Whitehead, Sally, Heyderman, R., Kariuki, S., Thomson, N. R., MacLennan, Calman A., Whitehead, S., Achtman, Mark, Sangal, V, Molyneux, ME, Msefula, CL, Sangal, V., Marsh, K., Holt, K. E., Kariuki, S, Thomson, Nicholas R., MacLennan, Calman, Clarke, L, Achtman, M., Gordon, Melita A., MacLennan, C. A., Holt, Kathryn, Gordon, M., Heyderman, R. S., Dougan, G., Gordon, Melita, Sangal, Vartul, Holt, K., Msefula, C., Msefula, Chisomo, Cormican, Martin, Holt, KE, Parkhill, J., Kingsley, R., Msefula, C. L., Msefula, Chisomo L., Marsh, K, Kingsley, RA, Kingsley, Robert A., Dougan, Gordon, Kingsley, R. A., Parkhill, Julian, Gordon, MA, Thomson, Nicholas, Whitehead, S, Harris, D, Molyneux, M. E., Heyderman, RS, Heyderman, Robert S., Harris, David, Marsh, Kevin, MacLennan, C., Clarke, Louise, Dougan, G, Heyderman, Robert, Thomson, NR, Achtman, M, Cormican, M   +69 more
core   +1 more source