1/2. Mayaro virus disease: an emerging mosquito-borne zoonosis in tropical south america.This report describes the clinical, laboratory, and epidemiological findings on 27 cases of Mayaro virus (MV) disease, an emerging mosquito-borne viral illness that is endemic in rural areas of tropical south america. MV disease is a nonfatal, dengue-like illness characterized by fever, chills, headache, eye pain, generalized myalgia, arthralgia, diarrhea, vomiting, and rash of 3-5 days' duration. Severe joint pain is a prominent feature of this illness; the arthralgia sometimes persists for months and can be quite incapacitating. Cases of two visitors from the united states, who developed MV disease during visits to eastern peru, are reported. MV disease and dengue are difficult to differentiate clinically.- - - - - - - - - - ranking = 1keywords = chill (Clic here for more details about this article) |
2/2. Recurrent arthralgias in a patient with previous Mayaro fever infection.Mayaro fever is an acute, self-limited, febrile, mosquito-borne viral disease manifested by fever, chills, headache, myalgias, and arthralgias. The virus belongs to the family togaviridae and the genus alphavirus. Five other mosquito-borne viruses have been described as causing a similar dengue-like illness. The virus was first isolated in 1954, and the first epidemics were described in 1955 in brazil and bolivia. Other cases have been reported in suriname, brazil, peru, french guiana, and Trinidad. Up to 10 to 15% of febrile illnesses in endemic areas have been attributed to Mayaro virus. The exact pathogenesis and pathophysiology among humans is unknown. Animal models have demonstrated necrosis of skeletal muscle, periosteum, perichondrial tissues, and evidence of meningitis and encephalitis. All previous cases of Mayaro fever describe a self-limited illness. No reports of recurrent symptoms exist in the literature. This report describes a case of recurrent arthralgias in a military service member presenting to the emergency department.- - - - - - - - - - ranking = 1keywords = chill (Clic here for more details about this article) |