scholarly journals Corrigendum to Scarcity of Hepatozoon americanum in Gulf Coast tick vectors and potential for cultivating the protozoan Veterinary Parasitology: Regional Studies and Reports Volume 21, July 2020, 100421

Author(s):  
Natalie D. Parkins ◽  
John V. Stokes ◽  
Nancy A. Gavron ◽  
Alexandra N. Frankovich ◽  
Andrea S. Varela-Stokes
2020 ◽  
Vol 21 ◽  
pp. 100421
Author(s):  
Natalie D. Parkins ◽  
John V. Stokes ◽  
Nancy A. Gavron ◽  
Alexandra N. Frankovich ◽  
Andrea S. Varela-Stokes

2003 ◽  
Vol 4 (1) ◽  
pp. 27-34 ◽  
Author(s):  
R. J. Panciera ◽  
S. A. Ewing

AbstractAmerican canine hepatozoonosis is an emerging, tick-transmitted infection of domestic dogs caused by a recently recognized species of apicomplexan parasite,Hepatozoon americanum. The known definitive host of the protozoan is the Gulf Coast tick,Amblyomma maculatum. Presently recognized intermediate hosts include the domestic dog and the coyote,Canis latrans. Laboratory-reared larval or nymphalA. maculatumcan be infected readily by feeding to repletion on a parasitemic intermediate host; sporogony requires 35–40 days. Transmission of infection to the dog has been produced experimentally by oral administration of mature oocysts or oocyst-containing ticks. Canine disease follows experimental exposure in 4–6 weeks and is characterized by systemic illness, extreme neutrophilic leukocytosis, muscle and bone pain, and proliferation of periosteal bone. Histopathological findings include multifocal skeletal and cardiac myositis associated with escape of mature merozoites from within the host-cell environment. There is also rapid onset of periosteal activation and osteogenesis and, less frequently, glomerulopathy and amyloidosis. Sequential stages of development ofH. americanumin both the dog and the tick have been elucidated. Gamonts potentially infectious to ticks have been observed in peripheral blood leukocytes of the dog in as few as 28 days after exposure to oocysts. Young coyotes experimentally exposed to a canine strain ofH. americanumacquired disease indistinguishable from that of similarly exposed young dogs.


Author(s):  
Goudarz Molaei ◽  
Eliza A H Little ◽  
Noelle Khalil ◽  
Bryan N Ayres ◽  
William L Nicholson ◽  
...  

Abstract We identified an established population of the Gulf Coast tick (Amblyomma maculatum Koch) infected with Rickettsia parkeri in Connecticut, representing the northernmost range limit of this medically relevant tick species. Our finding highlights the importance of tick surveillance and public health challenges posed by geographic expansion of tick vectors and their pathogens.


1988 ◽  
Vol 33 (1) ◽  
pp. 55 ◽  
Author(s):  
Charles J. Scifres ◽  
Thomas W. Oldham ◽  
Pete D. Teel ◽  
D. Lynn Drawe

2004 ◽  
Vol 39 (3) ◽  
pp. 426-432 ◽  
Author(s):  
Alan B. Wells ◽  
Lance A. Durden ◽  
John H. Smoyer

Ticks (Acari: Ixodidae) were collected from family-owned domestic dogs, Canis familiaris L., in Bulloch Co., GA, from 1996 to 2003 and from dogs maintained in a shelter in Emanuel Co., GA, in 2002 and 2003. A total of 2,466 ticks representing 9 species was recovered. The most frequently recovered species from family-owned dogs were the blacklegged tick, Ixodes scapularis Say (54.6% of all ticks from this group of dogs), and American dog tick, Dermacentor variabilis (Say) (27.7%). Collections from shelter-maintained dogs were dominated by the brown dog tick, Rhipicephalus sanguineus (Latreille) (73.6%). Except for 39 nymphs of the lone star tick, Amblyomma americanum (L.), 12 nymphs of R. sanguineus, 7 nymphs of the Gulf Coast tick, Amblyomma maculatum Koch, 1 nymph of D. variabilis and 72 larvae of the gopher tortoise tick, Amblyomma tuberculatum Marx, only adult ticks were present. Seasonally, I. scapularis adults were recorded from October through May and were most common in the fall; whereas, A. americanum, A. maculatum, A. tuberculatum, D. variabilis, and Ixodes affinis Neumann were all found only during the spring, summer and/or early fall. Two species of ticks collected during this study, A. tuberculatum and I. affinis, have Coastal Plain distributions in the southern U.S. and would only be expected to parasitize dogs within this region.


Sign in / Sign up

Export Citation Format

Share Document