| Serum levels of tumour necrosis factor-alpha and interleukin-1 beta during leprosy reactional states | Clinical and Experimental Immunology | 1991 | 131 |
| Development and interactions of Trypanosoma cruzi within the insect vector | Parasitology Today | 1991 | 121 |
| Characterization and expression of proteases during Trypanosoma cruzi metacyclogenesis | Experimental Parasitology | 1991 | 84 |
| Extracellular matrix components of the mouse thymus microenvironment: ontogenetic studies and modulation by glucocorticoid hormones | Journal of Histochemistry and Cytochemistry | 1991 | 82 |
| Characterization and classification of leishmanial parasites from humans, wild mammals, and sand flies in the Amazon region of Brazil | American Journal of Tropical Medicine and Hygiene | 1991 | 78 |
| Direct lysis of Trypanosoma cruzi: a novel effector mechanism of protection mediated by human anti-gal antibodies | Parasite Immunology | 1991 | 61 |
| Studies on the thymus in Chagas' disease. II. Thymocyte subset fluctuations in Trypanosoma cruzi-infected mice: relationship to stress | Scandinavian Journal of Immunology | 1991 | 58 |
| Trypanosoma rangeli (Tejera, 1920) isolated from a sylvatic rodent (Echimys dasythrix) in Santa Catarina Island, Santa Catarina State: first report of this trypanosome in southern Brazil | Memorias Do Instituto Oswaldo Cruz | 1991 | 54 |
| A cost-benefit analysis of Chagas disease control | Memorias Do Instituto Oswaldo Cruz | 1991 | 53 |
| Aspects of classification of Hemiptera hemocytes from six triatomine species | Memorias Do Instituto Oswaldo Cruz | 1991 | 47 |
| Histopathological criteria for the diagnosis of abdominal angiostrongyliasis | Zeitschrift Für Parasitenkunde (Berlin, Germany) | 1991 | 45 |
| Pathogenesis of Chagas' disease | Research in Immunology | 1991 | 44 |
| Analysis of the human T cell responsiveness to purified antigens of Leishmania: lipophosphoglycan (LPG) and glycoprotein 63 (gp 63) | Clinical and Experimental Immunology | 1991 | 41 |
| Longitudinal study of acute respiratory diseases in Rio de Janeiro: occurrence of respiratory viruses during four consecutive years | Revista Do Instituto De Medicina Tropical De Sao Paulo | 1991 | 41 |
| Epidemiological and nosological aspects of Leishmania naiffi Lainson & Shaw, 1989 | Memorias Do Instituto Oswaldo Cruz | 1991 | 41 |
| Antimalarial chemotherapy with natural products and chemically defined molecules | Memorias Do Instituto Oswaldo Cruz | 1991 | 39 |
| Biological characterization of Trypanosoma cruzi strains from different zymodemes and schizodemes | Memorias Do Instituto Oswaldo Cruz | 1991 | 38 |
| Polyclonal B-lymphocyte stimulation in human malaria and its association with ongoing parasitemia | American Journal of Tropical Medicine and Hygiene | 1991 | 35 |
| In vitro development of exoerythrocytic forms of Plasmodium gallinaceum sporozoites in avian macrophages | Journal of Protozoology | 1991 | 33 |
| Identification of Vibrio cholerae by enzyme electrophoresis | Transactions of the Royal Society of Tropical Medicine and Hygiene | 1991 | 33 |
| A study of sandfly species (Diptera: Psychodidae: Phlebotominae) in a focus of cutaneous leishmaniasis in the municipality of Baturité, Ceará, Brazil | Memorias Do Instituto Oswaldo Cruz | 1991 | 32 |
| Clinical and epidemiological aspects of abdominal angiostrongyliasis in southern Brazil | Revista Do Instituto De Medicina Tropical De Sao Paulo | 1991 | 32 |
| Enterovirus associated placental morphology: a light, virological, electron microscopic and immunohistologic study | Placenta | 1991 | 29 |
| Genomic variability in field populations of Schistosoma mansoni in Brazil as detected with a ribosomal gene probe | American Journal of Tropical Medicine and Hygiene | 1991 | 29 |
| Oligonucleotide probes for the specific detection of the wild poliovirus types 1 and 3 endemic to Brazil | Intervirology | 1991 | 28 |
