[Clinico-epidemiologic and laboratory research on hemorrhagic fevers in Guinea]. / Eléments de recherches clinico-épidémiologiques et de laboratoire sur les fièvres hémorragiques en Guinée.

In 1982-1983, were reported the cases of haemorrhagic fevers among populations living in the Madina-Ula district of Guinea. Clinico-epidemiological and serological studies (experimental studies) reveal into presumption of Ebola and Lassa fever viruses significance in the etiology of the disease outbreaks. Antibodies to Ebola virus were recognized in 19% from total number of sweating reconvalescent patients with the same clinical features, in order to 8% in healthy local populations. Antibodies to Lassa virus were detected in 3 cases, in 4 cases was revealed Lassa virus antigen in small rodents.

[Isolation of the Fomédé virus from Chiroptera, Nycteris nana, in the Republic of Guinea]. / Isolement du virus Fomédé à partir de chéiroptères Nycteris nana en République de Guinée.

In October 1978, a new virus named Fomédé was recovered from the bat, Nycteris nana, during the studies of arbovirus infections in Guinea (West Africa). When the virus was tested, it did not fit any prototype patterns. These findings have led to a presumption that the ch. s. 654 strain of virus is a previously unknown virus due to its biological, physico-chemical and antigenic patterns.

[Forécariah virus, a new representative of the Bhanja antigenic group, isolated in the Republic of Guinea]. / Le virus Forécariah, nouveau représentant du groupe antigénique Bhanja, isolé en République de Guinée.

A new arbovirus named "Forécariah" has been isolated from ticks Boophylus geigy in Republic of Guinea (West Africa), district Forecariah. This virus is classified into Bhanja antigen group, due to its physico-chemical, biological and antigenic properties.

[Isolation of a new orbivirus Kindia (Palyam group) from ticks Amblyomma variegatum in the Republic of Guinea]. / Isolement d'un nouveau orbivirus "Kindia" (Groupe Palyam) à partir de tiques Amblyomma variegatum en République de Guinée.

A new arbovirus named "Kindia" has been isolated from ticks Amblyomma variegatum in Guinea (West Africa), district Kindia. This virus is classified into Palyam group of Orbiviruses, due to its physico-chemical, biological and antigenic properties.

[Isolation of M'Poko virus (Turlock group, Bunyaviridae) from Culex cinereus mosquitoes in the Republic of Guinea]. / Isolement du virus M'Poko (groupe Turlock, Bunyaviridae) à partir de moustiques Culex cinereus en République de Guinée.

Virological studies conducted in the Republic of Guinea led to the isolation, for the first time, of M'Poko virus from Culex cinereus mosquitoes. The biological, physical and antigenic characteristics of this virus are studied. Serological tests are carried out in human and animal populations.