| malaria, a difficult diagnosis in a febrile patient with sub-microscopic parasitaemia and polyclonal lymphocyte activation outside the endemic region, in brazil. | a case of autochthonous plasmodium vivax malaria with sub-microscopic parasitaemia and polyclonal b-cell activation (pba) (as reflected by positive igm and igg serology for toxoplasmosis, cytomegalovirus, and antinuclear and rheumatoid factors) was diagnosed by polymerase chain reaction (pcr) after consecutive negative rapid diagnostic test results and blood films. the patient, a 44-year-old man from rio de janeiro state, brazil, had visited the atlantic forest, a tourist, non-malaria-endemic ar ... | 2013 | 24200365 |
| plasmodium vivax malaria relapses at a travel medicine centre in rio de janeiro, a non-endemic area in brazil. | malaria is a potentially severe disease widely distributed in tropical and subtropical regions worldwide. clinically, the progression of the disease can be life-threatening if it is not promptly diagnosed and properly treated. through treatment, the radical cure of plasmodium vivax infection can be achieved, thus preventing potential relapses and the emergence of new cases outside the amazon region in brazil. surveillance for therapeutic failure in non-endemic areas is advantageous, as it is unl ... | 2012 | 22839416 |
| unexpectedly long incubation period of plasmodium vivax malaria, in the absence of chemoprophylaxis, in patients diagnosed outside the transmission area in brazil. | abstract: background: in 2010, brazil recorded 3343,599 cases of malaria, with 99.6% of them concentrated in the amazon region. plasmodium vivax accounts for 86% of the cases circulating in the country. the extra-amazonian region, where transmission does not occur, recorded about 566 cases imported from the amazonian area in brazil and south america, from central america, asia and african countries. prolonged incubation periods have been described for p. vivax malaria in temperate climates. the ... | 2011 | 21569554 |