Anaplasma species are tick-transmitted pathogens that impact veterinary and human health. Sicily is one of the locations where these pathogens are endemic. Sicily represents a typical Mediterranean ecosystem to study Anaplasma infection and tick habitat suitability. The aims of this study were (i) to characterize by 16S rRNA and species-specific msp4 gene PCR the prevalence and genotypes of A. ...

BACKGROUND To better understand the epidemiology of tick-borne disease in Mongolia, a comprehensive seroprevalence study was conducted investigating exposure to Anaplasma spp. and spotted fever group (SFG) Rickettsia spp. in nomadic herders and their livestock across three provinces from 2014 to 2015. METHODS Blood was collected from 397 herders and 2370 livestock, including sheep, goats, cat...

Hidemasa Izumiya, Jun Terajima, Shouji Yamamoto, Makoto Ohnishi, Haruo Watanabe, Akemi Kai, Takayuki Kurazono, Masumi Taguchi, Tetsuo Asai, Masato Akiba, Yuko Matsumoto, and Yutaka Tamura Author affiliations: National Institute of Infectious Diseases, Tokyo, Japan (H. Izumiya, J. Terajima, S. Yamamoto, M. Ohnishi, H. Watanabe); Tokyo Metropolitan Institute of Public Health, Tokyo (A. Kai); Sait...

A total of iz treatmct schcdules consbiing oxytetracycline and an alpha­ dithiosetnicarbazonew'ere tested in' 36 splcnectomizcd calves carrying Anaplasma marginale infections. Anaplasma itifrtion was elimiatcdfollo'in[g the administration of 5 or ionig./kg. dithiosemicarbazone combined with j img./lkq. oxytetracycline, and gi,en 3 times at 24 or 48 hr. intervals. Treatments employing ho'er drg"...

Blood samples collected from wild deer in Missouri in November of 2000 and 2001 were positive by PCR assays for Ehrlichia chaffeensis (50 of 217; 23%), Ehrlichia ewingii (44 of 217; 20%), and Anaplasma species (214 of 217; 99%). Nucleotide sequences of selected amplicons from the assay for anaplasma matched sequences of the white-tailed deer agent. Serologic analysis of 112 deer sampled in 2000...

Anaplasma marginale and A. phagocytophilum are intracellular rickettsial pathogens causing bovine anaplasmosis and human granulocytic anaplasmosis, respectively. Effective vaccines for the control of anaplasmosis are not available despite attempts using different approaches, such as attenuated strains, infected erythrocyte and tick cell-derived purified antigens. Recent reports demonstrated tha...

Anaplasma and Ehrlichia species are important tick-borne pathogens that cause disease in cattle, dogs, horses and humans; with little information available about these agents in Colombia. The aim of this study was to provide molecular evidence for the presence of Anaplasma sp. and Ehrlichia sp. species in ticks collected from horses, dogs and cattle in Cordoba, Colombia. In this study, 1.105 ti...

This study was carried out to determine the presence and frequency of Anaplasma ovis and Anaplasma marginale in sheep and dairy cattle in West-Azerbaijan province, Iran. A total number of 200 blood samples were randomly collected via the jugular vein from apparently healthy cattle (100) and sheep (100). The extracted DNA from blood cells was screened using genus-specific (Anaplasma spp.) nested...

The genus Anaplasma (Rickettsiales: Anaplasmataceae) includes obligate tick-transmitted intracellular organisms, Anaplasma phagocytophilum and Anaplasma marginale that multiply in both vertebrate and tick host cells. Recently, we showed that A. marginale affects the expression of tick genes that are involved in tick survival and pathogen infection and multiplication. However, the gene expressio...

Members of the genus Anaplasma are important emerging tick-borne pathogens in both humans and animals in tropical and subtropical areas. Here, we investigated the presence of Anaplasma spp. in 621 sheep and 710 goats from six provinces of China. Polymerase chain reaction (PCR) and DNA sequencing were conducted to determine the prevalence of Anaplasma (A.) phagocytophilum, A. ovis and A. bovis t...