Reference Citation Analysis: Find an Article, Find a Category, Find a Journal, Find a Scholar

For: Tanner M, Inlameia O, Michel A, Maxlhuza G, Pondja A, Fafetine J, Macucule B, Zacarias M, Manguele J, Moiane IC, Marranangumbe AS, Mulandane F, Schönfeld C, Moser I, van Helden P, Machado A. Bovine Tuberculosis and Brucellosis in Cattle and African Buffalo in the Limpopo National Park, Mozambique. Transbound Emerg Dis 2014;62:632-8. [PMID: 24479882 DOI: 10.1111/tbed.12210] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Indexed: 11/29/2022]

For:	Tanner M, Inlameia O, Michel A, Maxlhuza G, Pondja A, Fafetine J, Macucule B, Zacarias M, Manguele J, Moiane IC, Marranangumbe AS, Mulandane F, Schönfeld C, Moser I, van Helden P, Machado A. Bovine Tuberculosis and Brucellosis in Cattle and African Buffalo in the Limpopo National Park, Mozambique. Transbound Emerg Dis 2014;62:632-8. [PMID: 24479882 DOI: 10.1111/tbed.12210] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Indexed: 11/29/2022]

Number

Cited by Other Article(s)

Kouengoua APK, Tsissa YL, Noudeke ND, Chimi RN, Njayou A, Youssao AKI, Dahouda M, Boko C, Dougnon V, Awah-Ndukum J, Souaibou F. Prevalence and zoonotic risk factors of Mycobacterium bovis tuberculosis in cattle at the cattle-wildlife-human interface in South and East Cameroon. Vet World 2024;17:8-16. [PMID: 38406372 PMCID: PMC10884586 DOI: 10.14202/vetworld.2024.8-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 11/28/2023] [Indexed: 02/27/2024] Open

Abstract

Background and Aim

Bovine tuberculosis (bTB) is a contagious and notifiable disease, which is prevalent in cattle populations of many countries and in several wildlife species worldwide. However, the role of wildlife in the transmission and/or maintenance of bTB at the human-wild animal-animal interface and the epidemiology of zoonotic disease are poorly understood in Cameroon, where many wildlife species exist. This study aimed to estimate the prevalence and zoonotic risk factors of bTB at the cattle-wildlife-human interface in the South and East regions of Cameroon.

Materials and Methods

We conducted a descriptive cross-sectional study from May to October 2022 in the southern region (Vallée du Ntem and Dja et Lobo) and eastern region (Haut Nyong and Lom et Djérem) of Cameroon to determine risk factors for bTB in Zebu Bororo, Goudali, Ndama, and Simmental cattle breeds. A comparative intradermal tuberculin testing (CIDT) was performed on 160 cattle randomly selected from herds using the threshold recommended by the World Organization for Animal Health. An interviewee-administered questionnaire was used to gather epidemiological data on sociodemographics, interaction between cattle and wildlife, and awareness of zoonotic tuberculosis (TB) from 90 cattle professionals. The prevalence of bTB at the herd level and associated risk factors were estimated using multiple logistic regression models.

Results

Based on the comparative intradermal tuberculin test (CIDT), the estimated prevalence of bTB in 160 cattle (Zebu Bororo, Goudali, Ndama, and Simmental) in South and East Cameroon was 6.8% (4.35%-9.41%) and 1.8% (0%-3.6%) for threshold values 3 mm and 4 mm, respectively. The prevalence obtained by simple intradermal tuberculin test (IDT) was 0.6% (0%-1.2%) for a threshold value 4 mm. Univariate analysis revealed three risk factors associated with bTB with significant odds ratios (OR; p = 0.05): herd size (OR = 4.88; 95% confidence interval [CI]: 1.24-32.56); cattle aged>10 years (OR = 0.17; 95% CI: 0.05-0.53); and victims of bTB organ seizure (OR = 0.015; 95% CI: 0.002-0.067). Multivariate analysis showed that being a cattle herder and contact between wildlife and livestock due to forage was significantly associated with bTB exposure (adjusted OR = 0.02; p = 0.001).

Conclusion

Bovine TB is prevalent in cattle of the South and East Cameroon. Comparative IDT of cattle reared in the epidemiological and environmental context of the study areas yielded better results at a threshold of 3 mm than at a threshold of 4 mm recommended by the World Health Organization. Factors associated with exposure to/appearance of bTB were high herd size, cattle aged >10 years old, seizures of tuberculous organs, shepherding as a profession, and contact between cattle and wildlife can be due to lack of forage.

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Oludele J, Alho P, Chongo I, Maholela P, Magaia V, Muianga A, Melchior B, Isaías T, Gatambire A, Zimba E, Nhavoto E, Notiço P, Inguana P, Cantoria J, António V, Monteiro V, Ali S, Inlamea O, Samo Gudo E. Emerging Zoonotic Diseases among Pastoral Communities of Caia and Búzi Districts, Sofala, Mozambique: Evidence of Antibodies against Brucella, Leptospira, Rickettsia, and Crimean-Congo Hemorrhagic Fever Virus. Viruses 2023;15:2379. [PMID: 38140620 PMCID: PMC10748219 DOI: 10.3390/v15122379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/28/2023] [Accepted: 10/09/2023] [Indexed: 12/24/2023] Open

Affiliation(s)

John Oludele Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Pascoal Alho Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Inocêncio Chongo Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Plácida Maholela Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Vlademiro Magaia Centro de Biotecnologia, Universidade Eduardo Mondlane, Maputo CP 257, Mozambique;
Argentina Muianga Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Bibiana Melchior Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Telma Isaías Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Aline Gatambire Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Edna Zimba Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Emídio Nhavoto Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Paulo Notiço Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Pedro Inguana Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Juma Cantoria Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Virgílio António Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Vanessa Monteiro Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Sádia Ali Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.) Center for International Health, Division of Infectious Diseases and Tropical Medicine, LMU University Hospital, Ludwig Maximilian University of Munich, 80802 München, Germany
Osvaldo Inlamea Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)
Eduardo Samo Gudo Instituto Nacional de Saúde, Marracuene 3943, Mozambique; (P.A.); (I.C.); (P.M.); (A.M.); (B.M.); (T.I.); (A.G.); (E.Z.); (E.N.); (P.N.); (P.I.); (J.C.); (V.A.); (V.M.); (S.A.); (O.I.); (E.S.G.)

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Müller-Klein N, Risely A, Schmid DW, Manser M, Clutton-Brock T, Sommer S. Two decades of tuberculosis surveillance reveal disease spread, high levels of exposure and mortality and marked variation in disease progression in wild meerkats. Transbound Emerg Dis 2022;69:3274-3284. [PMID: 35947092 DOI: 10.1111/tbed.14679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/20/2022] [Accepted: 07/31/2022] [Indexed: 02/07/2023]

Abstract

Infections with tuberculosis (TB)-causing agents of the Mycobacterium tuberculosis complex threaten human, livestock and wildlife health globally due to the high capacity to cross trans-species boundaries. Tuberculosis is a cryptic disease characterized by prolonged, sometimes lifelong subclinical infections, complicating disease monitoring. Consequently, our understanding of infection risk, disease progression, and mortality across species affected by TB remains limited. The TB agent Mycobacterium suricattae was first recorded in the late 1990s in a wild population of meerkats inhabiting the Kalahari in South Africa and has since spread considerably, becoming a common cause of meerkat mortality. This offers an opportunity to document the epidemiology of naturally spreading TB in a wild population. Here, we synthesize more than 25 years' worth of TB reporting and social interaction data across 3420 individuals to track disease spread, and quantify rates of TB social exposure, progression, and mortality. We found that most meerkats had been exposed to the pathogen within eight years of first detection in the study area, with exposure reaching up to 95% of the population. Approximately one quarter of exposed individuals progressed to clinical TB stages, followed by physical deterioration and death within a few months. Since emergence, 11.6% of deaths were attributed to TB, although the true toll of TB-related mortality is likely higher. Lastly, we observed marked variation in disease progression among individuals, suggesting inter-individual differences in both TB susceptibility and resistance. Our results highlight that TB prevalence and mortality could be higher than previously reported, particularly in species or populations with complex social group dynamics. Long-term studies, such as the present one, allow us to assess temporal variation in disease prevalence and progression and quantify exposure, which is rarely measured in wildlife. Long-term studies are highly valuable tools to explore disease emergence and ecology and study host-pathogen co-evolutionary dynamics in general, and its impact on social mammals.

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Woodburn DB, Steyl J, Du Plessis EC, Last RD, Reininghaus B, Mitchell EP. Pathological findings in African buffaloes (Syncerus caffer) in South Africa. J S Afr Vet Assoc 2021;92:e1-e11. [PMID: 34476957 PMCID: PMC8424707 DOI: 10.4102/jsava.v92i0.2117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 06/04/2021] [Accepted: 06/15/2021] [Indexed: 11/05/2022] Open

Kothowa JP, Mfune RL, Godfroid J, Hang'Ombe BM, Simuunza M, Muma JB. Documenting the absence of bovine brucellosis in dairy cattle herds in the southern region of Malawi and the associated knowledge, attitudes and practices of farmers. J S Afr Vet Assoc 2021;92:e1-e7. [PMID: 34476956 PMCID: PMC8424705 DOI: 10.4102/jsava.v92i0.2130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 05/30/2021] [Accepted: 06/01/2021] [Indexed: 11/21/2022] Open

Shi JF, Gong QL, Zhao B, Ma BY, Chen ZY, Yang Y, Sun YH, Wang Q, Leng X, Zong Y, Li JM, Du R. Seroprevalence of Brucellosis in Buffalo Worldwide and Associated Risk Factors: A Systematic Review and Meta-Analysis. Front Vet Sci 2021;8:649252. [PMID: 34150882 PMCID: PMC8213021 DOI: 10.3389/fvets.2021.649252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/03/2021] [Indexed: 11/25/2022] Open

Abstract

Background: Brucellosis is an important zoonotic disease caused by Brucella spp. Brucellosis is widely distributed in more than 160 or 170 countries around the world, where it poses a huge threat to animal husbandry and human health. About 150 million head of water buffalo, distributed across more than 40 countries worldwide, are kept for the purposes of service, milk, and meat. High incidence of Brucella spp. in buffalo has negatively affected dairy products and meat products.

Results: We searched all research related to seroprevalence of brucellosis in water buffalo anywhere in the world in PubMed, Science Direct, SpringerLink, China National Knowledge Infrastructure, Wanfang Database, and VIP Chinese Journal Databases. A total of 26 articles published from 1985 to 2020 met the final selection criteria. The overall seroprevalence of buffalo brucellosis worldwide was 9.7%. The seroprevalence before 2010 (20.8%) (95% CI: 5.6–42.2) was much higher than the seroprevalence rate from 2010 to 2020 (4.2%) (95% CI: 1.8–7.5). Subgroup analysis by feeding mode found that the point estimate of seroprevalence in stock buffalo (11.5%) (95% CI: 3.6–23.0) was higher than that in captive buffalo (10.6%) (95% CI: 4.9–18.1). Subgroup analysis by farming mode found that the seroprevalence was higher in captive-bred buffalo (10.7%) (95% CI: 6.6–15.7) than in intensively farmed buffalo (8.5) (95% CI: 0.9–22.2). The seroprevalence in buffalo living in dry lands (6.4%) (95% CI: 2.0–12.9) is greater than that in buffalo living in wetlands (5.1%) (95% CI: 1.8–10.4) (P < 0.05). The seroprevalence in female buffalo (10.1%) (95% CI: 3.4–19.7) was higher than that in male buffalo (4.4%) (95% CI: 2.0–7.4). The seroprevalence in lactating buffalo was higher than that in buffalo of other ages (26.9%) (95% CI: 1.8–66.5). Subgroup analysis by detection method found that the seroprevalence detected by the complement fixation test (27.3%) (95% CI: 0.7–70.8) was much higher than that detected by other methods.

Conclusion: The results of this meta-analysis showed that buffalo brucellosis infection is very common in buffalo herds around the world. Although the seroprevalence of brucellosis in buffalo and humans is relatively low, serious effects upon animal husbandry and public health make it necessary to take effective control and preventive measures to control the spread of this disease.

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Affiliation(s)

Jun-Feng Shi College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
Qing-Long Gong College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
Bo Zhao College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
Bao-Yi Ma College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
Zi-Yang Chen College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
Yang Yang College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
Yu-Han Sun College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
Qi Wang College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,College of Animal Science and Technology, Jilin Agricultural University, Changchun, China
Xue Leng College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
Ying Zong College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
Jian-Ming Li College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China
Rui Du College of Chinese Medicine Materials, Jilin Agricultural University, Changchun, China.,Laboratory of Production and Product Application of Sika Deer of Jilin, Jilin Agricultural University, Changchun, China.,Key Lab of Animal Production, Product Quality and Security, Ministry of Education, Jilin Agricultural University, Changchun, China

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Simpson G, Thompson PN, Saegerman C, Marcotty T, Letesson JJ, de Bolle X, Godfroid J. Brucellosis in wildlife in Africa: a systematic review and meta-analysis. Sci Rep 2021;11:5960. [PMID: 33727580 PMCID: PMC7966391 DOI: 10.1038/s41598-021-85441-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 02/28/2021] [Indexed: 01/31/2023] Open

Inlamea OF, Soares P, Ikuta CY, Heinemann MB, Achá SJ, Machado A, Ferreira Neto JS, Correia-Neves M, Rito T. Evolutionary analysis of Mycobacterium bovis genotypes across Africa suggests co-evolution with livestock and humans. PLoS Negl Trop Dis 2020;14:e0008081. [PMID: 32119671 PMCID: PMC7077849 DOI: 10.1371/journal.pntd.0008081] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 03/17/2020] [Accepted: 01/22/2020] [Indexed: 01/05/2023] Open

Abstract

Mycobacterium bovis is the pathogenic agent responsible for bovine tuberculosis (bTB), a zoonotic disease affecting mostly cattle, but also transmittable to humans and wildlife. Genetic studies on M. bovis allow to detect possible routes of bTB transmission and the identification of genetic reservoirs that may provide an essential framework for public health action.

We used a database with 1235 M. bovis genotypes collected from different regions in Africa with 45 new Mozambican samples. Our analyses, based on phylogeographic and population genetics’ approaches, allowed to identify two clear trends. First, the genetic diversity of M. bovis is geographically clustered across the continent, with the only incidences of long-distance sharing of genotypes, between South Africa and Algeria, likely due to recent European introductions. Second, there is a broad gradient of diversity from Northern to Southern Africa with a diversity focus on the proximity to the Near East, where M. bovis likely emerged with animal domestication in the last 10,000 years.

Diversity indices are higher in Eastern Africa, followed successively by Northern, Central, Southern and Western Africa, roughly correlating with the regional archaeological records of introduction of animal domesticates. Given this scenario M. bovis in Africa was probably established millennia ago following a concomitant spread with cattle, sheep and goat. Such scenario could translate into long-term locally adapted lineages across Africa.

This work describes a novel scenario for the spread of M. bovis in Africa using the available genetic data, opening the field to further studies using higher resolution genomic data.

We describe the genetic diversity distribution in Africa of the pathogen Mycobacterium bovis, the responsible for bovine tuberculosis, mostly present in cattle but also transmittable to other animals including humans. This diversity is geographically clustered within the African continent meaning that the genetic diversity was established through independent evolution within different areas. Higher diversity values of M. bovis are found in Eastern and Northern Africa, followed by Central Africa, with Western and Southern Africa displaying the lowest diversity. These levels of diversity correlate well with the introduction of domesticated livestock in the different regions of Africa, following their domestication in the Near East 10,000 ago. We hypothesize that M. bovis emerged in the Near East and it was carried across Africa together with domesticated animals and people that developed herding practices and biological tolerance for digesting milk in adulthood. Such scenario implies a strong evolution and co-evolution of M. bovis across Africa leading to locally adapted strains that could prove a challenge for public health actions.

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Muturi M, Bitek A, Mwatondo A, Osoro E, Marwanga D, Gura Z, Ngere P, Nganga Z, Thumbi SM, Njenga K. Risk factors for human brucellosis among a pastoralist community in South-West Kenya, 2015. BMC Res Notes 2018;11:865. [PMID: 30518420 PMCID: PMC6282298 DOI: 10.1186/s13104-018-3961-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/29/2018] [Indexed: 12/31/2022] Open

Genetic diversity and potential routes of transmission of Mycobacterium bovis in Mozambique. PLoS Negl Trop Dis 2018;12:e0006147. [PMID: 29346413 PMCID: PMC5772998 DOI: 10.1371/journal.pntd.0006147] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 12/01/2017] [Indexed: 11/18/2022] Open

Abstract

Bovine tuberculosis is a zoonotic disease with largely unknown impact in Africa, with risk factors such as HIV and direct contact with animals or consumption of Mycobacterium bovis infected animal products. In order to understand and quantify this risk and design intervention strategies, good epidemiological studies are needed. Such studies can include molecular typing of M. bovis isolates. The aim of this study was to apply these tools to provide novel information concerning the distribution of bovine tuberculosis in cattle in Mozambique and thereby provide relevant information to guide policy development and strategies to contain the disease in livestock, and reduce the risk associated with transmission to humans. A collection of 178 M. bovis isolates was obtained from cattle in Mozambique. Using spoligotyping and regions of difference analysis, we classified the isolates into clonal complexes, thus reporting the first characterisation of M. bovis strains in this region. Data from MIRU-VNTR typing was used to compare isolates from a number of African countries, revealing a deeply geographically structured diversity of M. bovis. Eastern Africa appears to show high diversity, suggesting deep evolution in that region. The diversity of M. bovis in Africa does not seem to be a function of recent importation of animals, but is probably maintained within each particular region by constant reinfection from reservoir animals. Understanding the transmission routes of M. bovis in Mozambique and elsewhere is essential in order to focus public health and veterinary resources to contain bovine tuberculosis.

Bovine tuberculosis is a rather neglected zoonotic disease caused by Mycobacterium bovis that is of global concern owing to the persistence of the bacillus in reservoirs that can spread bovine tuberculosis between animals and humans. Africa remains understudied regarding this pathogen, and should be an area of concern given that in many regions the consumption of raw milk or meat from infected animals persists and the presence of HIV infection renders the population more susceptible. In order to control the disease, we need to understand M. bovis epidemiology, which includes the sources of infection. The important conclusion drawn from the work presented here is that there is a strong association between M. bovis genetic characteristics and geography. This implies that the diversity of M. bovis isolates in Mozambique does not seem to be caused by recent introductions to the territory, but is probably maintained within reservoirs in each particular region.

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Godfroid J. Brucellosis in livestock and wildlife: zoonotic diseases without pandemic potential in need of innovative one health approaches. ACTA ACUST UNITED AC 2017;75:34. [PMID: 28904791 PMCID: PMC5592711 DOI: 10.1186/s13690-017-0207-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 06/12/2017] [Indexed: 12/21/2022]

Rajeev M, Mutinda M, Ezenwa VO. Pathogen Exposure in Cattle at the Livestock-Wildlife Interface. ECOHEALTH 2017;14:542-551. [PMID: 28470362 DOI: 10.1007/s10393-017-1242-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 03/23/2017] [Indexed: 06/07/2023]

Are brucellosis, Q fever and melioidosis potential causes of febrile illness in Madagascar? Acta Trop 2017;172:255-262. [PMID: 28502643 DOI: 10.1016/j.actatropica.2017.05.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 12/18/2022]

Angelici FM. Bushmeat and Emerging Infectious Diseases: Lessons from Africa. PROBLEMATIC WILDLIFE 2016. [PMCID: PMC7123567 DOI: 10.1007/978-3-319-22246-2_24] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]

Viegas SO, Ghebremichael S, Massawo L, Alberto M, Fernandes FC, Monteiro E, Couvin D, Matavele JM, Rastogi N, Correia-Neves M, Machado A, Carrilho C, Groenheit R, Källenius G, Koivula T. Mycobacterium tuberculosis causing tuberculous lymphadenitis in Maputo, Mozambique. BMC Microbiol 2015;15:268. [PMID: 26589993 PMCID: PMC4654834 DOI: 10.1186/s12866-015-0603-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 11/12/2015] [Indexed: 01/29/2023] Open

Abstract

Background

The zoonosis bovine tuberculosis (TB) is known to be responsible for a considerable proportion of extrapulmonary TB. In Mozambique, bovine TB is a recognised problem in cattle, but little has been done to evaluate how Mycobacterium bovis has contributed to human TB. We here explore the public health risk for bovine TB in Maputo, by characterizing the isolates from tuberculous lymphadenitis (TBLN) cases, a common manifestation of bovine TB in humans, in the Pathology Service of Maputo Central Hospital, in Mozambique, during one year.

Results

Among 110 patients suspected of having TBLN, 49 had a positive culture result. Of those, 48 (98 %) were positive for Mycobacterium tuberculosis complex and one for nontuberculous mycobacteria. Of the 45 isolates analysed by spoligotyping and Mycobacterial Interspersed Repetitive Unit – Variable Number Tandem Repeat (MIRU-VNTR), all were M. tuberculosis. No M. bovis was found.

Cervical TBLN, corresponding to 39 (86.7 %) cases, was the main cause of TBLN and 66.7 % of those where from HIV positive patients.

We found that TBLN in Maputo was caused by a variety of M. tuberculosis strains. The most prevalent lineage was the EAI (n = 19; 43.2 %). Particular common spoligotypes were SIT 48 (EAI1_SOM sublineage), SIT 42 (LAM 9), SIT 1 (Beijing) and SIT53 (T1), similar to findings among pulmonary cases.

Conclusions

M. tuberculosis was the main etiological agent of TBLN in Maputo. M. tuberculosis genotypes were similar to the ones causing pulmonary TB, suggesting that in Maputo, cases of TBLN arise from the same source as pulmonary TB, rather than from an external zoonotic source. Further research is needed on other forms of extrapulmonary TB and in rural areas where there is high prevalence of bovine TB in cattle, to evaluate the risk of transmission of M. bovis from cattle to humans.

Electronic supplementary material

The online version of this article (doi:10.1186/s12866-015-0603-5) contains supplementary material, which is available to authorized users.

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Affiliation(s)

Sofia Omar Viegas National Institute of Health, Ministry of Health, Maputo, Mozambique. .,Faculty of Veterinary, Eduardo Mondlane University, Maputo, Mozambique. .,Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden.
Solomon Ghebremichael Department of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Leguesse Massawo National Institute of Health, Ministry of Health, Maputo, Mozambique.
Matos Alberto Pathology Service, Maputo Central Hospital, Ministry of Health, Maputo, Mozambique.
Fabíola Couto Fernandes Pathology Service, Maputo Central Hospital, Ministry of Health, Maputo, Mozambique. .,Department of Pathology, Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique.
Eliane Monteiro Pathology Service, Maputo Central Hospital, Ministry of Health, Maputo, Mozambique.
David Couvin WHO Supranational TB Reference Laboratory, Tuberculosis & Mycobacteria Unit, Institut Pasteur de la Guadeloupe, Abymes, Guadeloupe, France.
José Maiane Matavele National Institute of Health, Ministry of Health, Maputo, Mozambique.
Nalin Rastogi WHO Supranational TB Reference Laboratory, Tuberculosis & Mycobacteria Unit, Institut Pasteur de la Guadeloupe, Abymes, Guadeloupe, France.
Margarida Correia-Neves Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden. .,Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal. .,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal.
Adelina Machado Faculty of Veterinary, Eduardo Mondlane University, Maputo, Mozambique.
Carla Carrilho Pathology Service, Maputo Central Hospital, Ministry of Health, Maputo, Mozambique. .,Department of Pathology, Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique.
Ramona Groenheit Department of Microbiology, Public Health Agency of Sweden, Solna, Sweden.
Gunilla Källenius Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden.
Tuija Koivula Department of Clinical Science and Education, Karolinska Institutet, Stockholm, Sweden. .,Department of Microbiology, Public Health Agency of Sweden, Solna, Sweden.

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Pérez de Val B, Napp S, Velarde R, Lavín S, Cervera Z, Singh M, Allepuz A, Mentaberre G. Serological Follow-up of Tuberculosis in a Wild Boar Population in Contact with Infected Cattle. Transbound Emerg Dis 2015;64:275-283. [PMID: 25944524 DOI: 10.1111/tbed.12368] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Indexed: 12/01/2022]