| hantavirus pulmonary syndrome in northwestern argentina: circulation of laguna negra virus associated with calomys callosus. | the purpose of this study was to characterize the hantaviruses circulating in northwestern argentina. human and rodent studies were conducted in yuto, where most cases of hantavirus pulmonary syndrome (hps) occur. partial virus genome sequences were obtained from the blood of 12 cases of hps, and from the lungs of 4 calomys callosus and 1 akodon simulator. phylogenetic analysis showed that three genotypes associated with hps circulate in yuto. laguna negra (ln) virus, associated with c. laucha i ... | 2004 | 15569801 |
| the systematic position of some nippostrongyline nematodes (trichostrongylina: heligmosomoidea) parasitic in argentinean sigmodontine rodents. | the systematic position of two nippostrongyline nematodes described from argentinean sigmodontine rodents is clarified. the first species, hassalstrongylus multiovatus suriano & navone, 1992, parasitic in akodon simulator thomas from the province of tucumán, was studied on the basis of type and voucher material. h. multiovatus is proposed as a junior synonym of trichofreitasia lenti sutton & durette-desset, 1991, a parasite described from oligoryzomys flavescens (waterhouse) in the province of b ... | 2007 | 17195037 |
| [comparative cytogenetics of three species of south american field hamsters of the genus akodon (rodentia, cricetidae)]. | a karyological analysis of three species of south american field mice of the genus akodon from four different localities of the department of tarija, bolivian republic, was performed. in akodon simulator, 2n = 40 - 42, nfa = 42. the variation of the diploid number is caused by a polymorphism of the robertsonian type involving six pairs of acrocentric chromosomes. five variants of karyotypes were revealed. the chromosome set of a. sp. has 2n = 36, nfa = 40; in a. toba, 2n = 42 - 43, nfa = 44 - 46 ... | 1996 | 8647427 |