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CDC EID – DEC 2012 – Au sommaire:Reservoir Competence of Vertebrate Hosts for Anaplasma phagocytophilumFelicia Keesing , Michelle H.
Wild Boars as Hosts of Human-Pathogenic Anaplasma phagocytophilum Variants - Vol. 18 No. 12 - December 2012Suggested citation for this article To the Editor: Michalik et al. ( 1 ) reported a 12% prevalence of Anaplasma phagocytophilum , the causative agent of human granulocytic anaplasmosis and tick-borne fever of ruminants, in wild boars in Poland. A. phagocytophilum has been reported with low prevalence among wild boar in the Czech Republic, Slovenia ( 2 ), and Japan ( 3 ).
Introduction Materials and methods Results Discussion Conclusions Acknowledgements
Cynthia C. Lord and C. Roxanne Rutledge Connelly 2 Ehrlichia and Anaplasma are related bacterial genera containing species that can cause disease in both humans and domestic animals. The diseases are often referred to simply as ehrlichiosis or anaplasmosis, but there are multiple species of bacteria that can cause different disease symptoms and have different vectors. The taxonomy (naming system and how they are related) was recently revised.
Edited by Alfonso J. Rodriguez-Morales , ISBN 978-953-51-0274-8, Hard cover, 564 pages, Publisher: InTech, Published: March 16, 2012 under CC BY 3.0 license DOI: 10.5772/1335 Tropical Medicine has emerged and remained as an important discipline for the study of diseases endemic in the tropic, particularly those of infectious etiology. Emergence and reemergence of many tropical pathologies have recently aroused the interest of many fields of the study of tropical medicine, even including new infectious agents. Then evidence-based information in the field and regular updates are necessary.
Case Series (14884) Total Article Views Authors: Mayne PJ Video presented by Peter J Mayne Views: 1219 Published Date December 2011 Volume 2011:4 Pages 845 - 852 DOI: http://dx.doi.org/10.2147/IJGM.S27336
BLOG FOR PHSYCIANS ABOUT NEJM 13/04/12 A Man with Weakness and RashIn the latest Case Record of the Massachusetts General HospitIn the latest Case Record of the Massachusetts General Hospital , a 60-year-old man from coastal New England was admitted to this hospital because of fever, weakness, rash, and renal failure. An initial measurement of creatine kinase was 20,437 U per liter. A diagnostic test was performed.
Obligate intracellular bacteria of the Rickettsiales order have evolved to colonize both arthropod and mammalian hosts, but few details are known about the bacterial adaptations that occur during transmission from blood-feeding arthropods to mammals. Here we apply proteomics and transcriptome sequencing to Anaplasma phagocytophilum , the agent of human granulocytic anaplasmosis, in Ixodes scapularis tick salivary glands, to detect proteins or genes expressed by the pathogen during transmission feeding by the tick. We detected expression of 139 genes, representing 11% of the open reading frames (ORFs) in the A. phagocytophilum genome.
If the rising risks of Lyme disease , Anaplasmosis or Babesiosis weren't reasons enough to take extra precautions while outdoors this summer -- and to do a thorough tick check before going back inside -- researchers have now identified yet another unpleasant tick-transmitted disease. A still unnamed, tick-borne bacterium appears to have transmitted ehrlichiosis to at least 25 people in Wisconsin and Minnesota, with more cases likely unaccounted for due to the flu-like symptoms common among other diseases that pass through ticks, according to a new paper published on Thursday in the New England Journal of Medicine . The discovery builds on evidence of the increasing number of infectious diseases spread from wildlife to humans, researchers say. Bats are currently transmitting the deadly Hendra virus among horses and humans in Australia while rodents scatter hantavirus across the U.S. -- most recently taking lives in New Mexico and Washington State .
New bacterium causing tick-borne illness ehrlichiosis in Wis., Minn. Thursday, August 4, 2011 Deer tick A new tick-borne bacterium infecting humans with ehrlichiosis has been discovered in Wisconsin and Minnesota.
Ehrlichiosis and anaplasmosis are tickborne zoonoses caused by obligate intracellular gram-negative bacteria in the family Anaplasmataceae. 1 Symptoms typically include fever, myalgia, and headache, with rash in rare instances. Severe disease may be associated with gastrointestinal, renal, respiratory, and central nervous system involvement and, in rare cases, death. In the United States, ehrlichiosis in humans is caused primarily by infection with Ehrlichia chaffeensis, which infects monocytes, and less commonly by E. ewingii, which infects granulocytes. Anaplasma phagocytophilum is closely related to the ehrlichiae and causes human granulocytic anaplasmosis. 1,2 E. ewingii and E. chaffeensis are transmitted to humans by the bite of an infected tick, Amblyomma americanum, whereas A. phagocytophilum is transmitted in the United States by the ticks Ixodes scapularis and I. pacificus . 3