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Leptospirosis is a common disease in Latin America. Transmission to humans occurs by contact with water or soil contaminated with the urine of rodents, dogs, or livestock. Pathogenesis is still poorly understood, and bacterial toxin or virulence factors are probably responsible for many features of the disease. The anicteric form is the most frequent(More)
OBJECTIVE To describe 10 patients with skin and soft tissue infection caused by rapidly growing mycobacteria after cosmetic liposuction and liposculpture. DESIGN Case series. SETTINGS Eight private geographically separate surgical facilities from a single metropolitan area. PATIENTS Eight patients with definite and 2 with presumptive cases of skin and(More)
To examine whether prior immunity against a carrier protein modulates the serological response to injected peptide haptens attached to the same carrier in man, baseline tetanus antitoxin levels in volunteers who received a malaria sporozoite peptide-tetanus toxoid conjugate vaccine were compared with post-vaccination IgM and IgG antibody titres against the(More)
SUMMARY A 2 7 yearjOl d mal e develope d seizure s afte r receivin g a singl e 2 0 mg/k g dos e of praziquante l fo r th e treatmen t o f a n intestina l Hymenolepi s nan a infection. O n further clinica l an d laboratoria l evaluations , h e wa s foun d t o suffe r fro m a n unti l then asymptomati c parenchyma l brai n cysticercosis. Praziquantel must b e(More)
BACKGROUND Trypanosoma cruzi oral transmission is possible through food contamination by vector's feces. Little is known about the epidemiology and clinical features of microepidemics of orally acquired acute Chagas disease (CD). METHODS A case-control, cohort-nested, epidemiological study was conducted during an outbreak of acute CD that affected a(More)
Several recently developed analgesic techniques effectively control pain after major orthopaedic surgery. Neuraxial analgesia provided by epidural and spinal administration of local anesthetics and opioids provides the highest level of pain control; however, such therapy is highly invasive and labor intensive. Neuraxial analgesia is contraindicated in(More)
The adw4 subtype of hepatitis B virus (HBV) belongs to a unique genomic group (genotype F) representing the original HBV strains from the New World. Data regarding the prevalence of this subtype among HBV carriers in South America are, however, scarce, and those concerning HBV genotype F are based on only a few samples from Latin America. In this study,(More)
In the last two decades, all countries in the tropical regions of Latin America have experienced marked increases in the incidence of both classic dengue and dengue hemorrhagic fever. Major risk factors for the occurrence of dengue in the region, as well as some regional peculiarities in its clinical expression, such as the extensive involvement of older(More)