rocky montana maculosa Fever

Maculosa fever of Montañas Rocosas (FMR)

Call fever also transmitted by garrapatas, stained fever of Rocky Mountains by the characteristic injuries that produce in the skin (to see image).
This zoonosis is a disease caused by a special type of bacteria Rickettsia Rickettsii and it transmits through a puncture of garrapatas of the Dermacentor sort variabilis (in the U.S.A. of America) and Rhipicephalus amblyomma and sanguineus (in Latin America) carrying of this bacterium (of there the name). (To see cycles more down)
The incidence of the infections by Rickettsia increases in the months of the spring and summer, reproducing symmetrically the service life of the vector.

It deciphers for the first time in rocky mountains (the USA), today is a considered disease of western distribution. In the United States of America it annually affects approximately to 600-800 people, being single in 4% mortal (significant percentage of this mortality is probably due to a delay in the diagnosis and treatment).

The rodents and other animals can also have the infection, but they do not demonstrate symptoms generally. A considered 4% of the garrapatas of the dog become infected with the species of Rickettsia, but most of these organisms it is nonpathogenic Rickettsia (it does not produce disease). The human beings are fortuitous guests and they do not contribute to the propagation of the bacterium.

It is important to remember that FMR is a multisistémica disease (affects several systems simultaneously).
The mordedura of the garrapata is the initial step of the disease, situation that in general happens inadvertent, to the week the patient develops clinical manifestations of the infection being these fever, pains, chills, nauseas and vomits (the affected individuals seem and they feel seriously ill). One more a more serious complication includes the presence of the very small hemorrhages called petequias (type puntiformes).
The implication of the nervous system (they include the encefalitis and the meningoencefalitis), of the heart, the lungs (edema pulmonary no-cardiogénico, with neumonía) and of other vital organs is frequent and when appearing they can take to the death to the affected individual.

 

But information in:
http://www.uninet.edu/neurocon/congreso-1/conferencias/infecciosas-2.html
http://www.msd.es/publicaciones/mmerck_hogar/seccion_17/seccion_17_183.html
http://www.vdh.state.va.us/spanish/rmsff.htm

Bibliography

Author: MV Adelaida A. Goldman

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