Rinderpest and peste des petits ruminants (PPR) are two closely related viral diseases caused by viruses belonging to the genus Morbillivirus and affecting ruminants. Both diseases are notifiable to the World Organisation for Animal Health (WOAH) due to their high contagiosity and economic importance. International collaboration and scientific developments have led to the eradication of rinderpest, which was celebrated in 2011, 250 years after the first veterinary school was created in Lyon.
View Article and Find Full Text PDFCervical cancer (CC) is the second most common cancer in Western Africa, accounting for 12,000 cases and 6000 deaths annually. While vaccination against human papilloma virus (HPV) and CC screenings reduce the incidence and mortality of CC in many developed countries, 90% of CC deaths are in low-income countries. Lack of knowledge about the connection between HPV and CC, lack of access to vaccines and screenings, weak healthcare infrastructure, and stigma related to sexually transmitted diseases are among the factors that contribute to this disparity.
View Article and Find Full Text PDFPeste des petits ruminants virus (PPRV) causes a highly infectious disease affecting mainly goats and sheep in large parts of Africa, Asia, and the Middle East and has an important impact on the global economy and food security. Full genome sequencing of PPRV strains has proved to be critical to increasing our understanding of PPR epidemiology and to inform the ongoing global efforts for its eradication. However, the number of full PPRV genomes published is still limited and with a heavy bias towards recent samples and genetic Lineage IV (LIV), which is only one of the four existing PPRV lineages.
View Article and Find Full Text PDFNinety percent of deaths from Cervical cancer (CC) caused by Human Papilloma Virus (HPV) occur in low- and middle-income countries. CC is the 2nd most common cause of cancer in women in West Africa, where 12,000 women develop cervical cancer and more than 6,000 die from the disease, annually. While HPV vaccination and CC screening have dramatically reduced the incidence of CC and mortality from CC in developed countries, prevention of CC in West Africa is often limited to visual inspection of the cervix and surgical intervention.
View Article and Find Full Text PDFPeste des petits ruminants (PPR) is a highly contagious disease of small ruminants. The causal agent, PPR virus (PPRV), is classified into four genetically distinct lineages. Lineage IV, originally from Asia, has shown a unique capacity to spread across Asia, the Middle East and Africa.
View Article and Find Full Text PDFPeste des Petits Ruminants (PPR) is a viral disease affecting predominantly small ruminants. Due to its transboundary nature, regional coordination of control strategies will be key to the success of the on-going PPR eradication campaign. Here, we aimed at exploring the extent of transboundary movement of PPR in West Africa using phylogenetic analyses based on partial viral gene sequences.
View Article and Find Full Text PDFSheep poxvirus (SPPV), goat poxvirus (GTPV) and lumpy skin disease virus (LSDV) affect small ruminants and cattle causing sheeppox (SPP), goatpox (GTP) and lumpy skin disease (LSD) respectively. In endemic areas, vaccination with live attenuated vaccines derived from SPPV, GTPV or LSDV provides protection from SPP and GTP. As live poxviruses may cause adverse reactions in vaccinated animals, it is imperative to develop new diagnostic tools for the differentiation of SPPV field strains from attenuated vaccine strains.
View Article and Find Full Text PDFRinderpest, the most dreaded disease of cattle, originated as far back as the domestication of cattle, occurring in Asia more than 10,000 years ago. It has been the main preoccupation of Veterinary Service activities for many centuries and was the major motivation for establishing the first veterinary school in Lyon, France, in 1761. Gaining control of the disease was the impetus for the founding of many regional and international organisations (including the World Organisation for Animal Health).
View Article and Find Full Text PDFPeste des Petits Ruminants (PPR) is a serious transboundary infectious disease of small ruminants. The causal agent, PPR virus (PPRV), can be separated into four genetically distinct lineages using phylogenetic analysis. In recent decades, lineage IV of PPRV has dramatically extended its geographic distribution from Asia to the Middle East and to Africa, where it has progressively replaced other PPRV lineages.
View Article and Find Full Text PDFBackground: Sheeppox (SPP) and goatpox (GTP) caused by sheeppox virus (SPPV) and goatpox virus (GTPV), respectively of the genus Capripoxvirus in the family Poxviridae, are severely afflicting small ruminants' production systems in Africa and Asia. In endemic areas, SPP and GTP are controlled using vaccination with live attenuated vaccines derived from SPPV, GTPV or Lumpy skin disease virus (LSDV). Sometimes outbreaks occur following vaccination.
View Article and Find Full Text PDFPeste des petits ruminants (PPR) is a contagious and economically important disease affecting production of small ruminants (i.e., sheep and goats).
View Article and Find Full Text PDFBackground: Cervical cancer is one of the most common and lethal cancers in West Africa. Even though vaccines that protect against the most common Human papillomavirus (HPV) strains, 16 and 18, are currently in use in developed countries, the implementation of these vaccines in developing countries has been painfully slow, considering the pre-eminence of HPV-associated cervical cancer among women in those countries.
Aim: We performed serological and PCR-based assessment of blood and tissue specimens obtained from women undergoing cervical cancer-related surgery at a major urban hospital in Bamako.
Although screening for pre-cancerous cervical lesions and human papilloma virus (HPV) vaccination are accepted and effective means to prevent cervical cancer, women in Mali have limited access to these interventions. In addition, cervical cancer prevention by HPV vaccination has been controversial in some settings. To reduce cervical cancer prevalence and increase HPV vaccine uptake, it is important to understand the level of knowledge about cervical cancer screening and practices related to vaccination in at-risk populations.
View Article and Find Full Text PDFBackground: Bovine tuberculosis (BTB) is a contagious, debilitating human and animal disease caused by Mycobacterium bovis, a member of the Mycobacterium tuberculosis complex. The study objective were to estimate the frequency of BTB, examine genetic diversity of the M. bovis population in cattle from five regions in Mali and to determine whether M.
View Article and Find Full Text PDFBackground: Few serological tests are available for detecting antibodies against Mycoplasma capricolum subsp. capripneumoniae, the causal agent of contagious caprine pleuropneumonia (CCPP). The complement fixation test, the test prescribed for international trade purposes, uses a crude antigen that cross-reacts with all the other mycoplasma species of the "mycoides cluster" frequently infecting goat herds.
View Article and Find Full Text PDFDespite a high prevalence of oncogenic human papilloma virus (HPV) infection and cervical cancer mortality, HPV vaccination is not currently available in Mali. Knowledge of HPV and cervical cancer in Mali, and thereby vaccine readiness, may be limited. Research staff visited homes in a radial pattern from a central location to recruit adolescent females and males aged 12-17 years and men and women aged ≥ 18 years (N = 51) in a peri-urban village of Bamako, Mali.
View Article and Find Full Text PDFHIV genomic sequence variability has complicated efforts to generate an effective globally relevant vaccine. Regions of the viral genome conserved in sequence and across time may represent the "Achilles' heel" of HIV. In this study, highly conserved T-cell epitopes were selected using immunoinformatics tools combining HLA-A2 supertype binding predictions with relative global conservation.
View Article and Find Full Text PDFReference standards are used to calibrate similar assay systems against an international reference protocol and to provide a template for the preparation of secondary and/or working standards. Three reference standards are recommended for the indirect enzyme-linked immunosorbent assay: a strong positive standard, a weak positive standard and a negative serum standard. The negative standard should be derived from a single serum or from a serum pool which exhibits typical background activity in the reference protocol.
View Article and Find Full Text PDFRev Elev Med Vet Pays Trop
August 1997
Within the epidemiological surveillance of rinderpest in Mali a serological survey has been carried out on 58 herds of small ruminants. Out of 567 tested sera for the detection of antibodies against rinderpest 2 were positive. These sera were collected from two animals over 6 years old, probably infected during the last outbreak of rinderpest in Mali in 1986.
View Article and Find Full Text PDFThe authors report the results of an epidemiological survey of bovine brucellosis in Mali, based on a relatively representative sample of 1,000 serum samples from 236 herds. The prevalence of infection in the herds, established by indirect enzyme-linked immunosorbent assay (ELISA) was 53% +/- 6.4.
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