Tengiz Chaligava

Tengiz Chaligava


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2021 in Preventive Veterinary Medicine
Verified
Journal Article
Open access
ECERIKA CHENAIS
ERIKA CHENAIS
PWPatrick Wennström
Patrick Wennström
NKNatia Kartskhia
Natia Kartskhia
KFKlara Fischer
Klara Fischer
GRGuillermo Risatti
Guillermo Risatti
NVNino G. Vepkhvadze
Nino G. Vepkhvadze
Small ruminants support the livelihoods of millions of poor pastoralist and sedentary households around the world. While pastoralists are generally not amongst the poorest in terms of assets, they are frequently marginalised in terms of their access to political power, health and education. This study was undertaken among pastoralist households keeping small ruminants in four regions of the country of Georgia. Small ruminants are an important cultural, social and economic asset in Georgia and are mainly managed in a transhumant pastoralist system. Georgia suffered its first, and so far only outbreak of peste des petits ruminants (PPR) in 2016. This qualitative interview study was designed to acquire contextual understanding of local small ruminant husbandry and the livelihood situations of the participating pastoralists, and to detect historical, unreported PPR outbreaks. Focus group discussions comprising participatory epidemiology tools and other forms of interviews were used to explore small ruminant management, disease spectrum and management, and animal health priorities. The participants had experienced a wide variety of animal health constraints, with intestinal worms, braxy, piroplasmosis, pasture-related problems, predators and lameness emerging as priorities. No historic, unreported PPR outbreak was detected in this study, and PPR was not a priority for participants. Instead, the day-to-day reality of animal health for the pastoralists was characterised by co-infections of mainly endemic pathogens, and problems related to other challenges such as access to land, feed and genetic resources. The rationale behind the participants' prioritisation of animal health problems was supported by the need to pay extra attention to animals in order to avoid risk factors, keep animals healthy and minimise the negative impact of diseases or management problems; the various epidemiological and clinical parameters of the prioritised diseases; the economic impact of the specific problems and the zoonotic potential of diseases and predation. Even within regions, and within seemingly socially and culturally homogenous groups, there were important local differences in the problems faced by pastoralists that affect their livestock management. This study underlines the importance of a contextualised understanding of the local disease panorama and complexities in the livelihood situations of rural people when designing actions to improve animal health in general or, more specifically, passive surveillance as well as prevention or control measures. Finally, it is concluded that to achieve such an understanding, there is a need for participatory, scoping-style studies that specifically acknowledge diversity and power relations.

12 March 2024 in Vaccines
Verified
Journal Article
Open access
PDF file
EFEfrem Alessandro Foglia
Efrem Alessandro Foglia
TCTengiz Chaligava
Tengiz Chaligava
TATamilla Aliyeva
Tamilla Aliyeva
Satenik KharatyanSatenik Kharatyan
Satenik Kharatyan
VTvito tranquillo
vito tranquillo
EBEmiliana Brocchi
Emiliana Brocchi
In countries endemic for foot-and-mouth disease (FMD), routine or emergency vaccinations are strategic tools to control the infection. According to the WOAH/FAO guidelines, a prior estimation of vaccine effectiveness is recommendable to optimize control programs. This study reports the results of a small-scale immunogenicity study performed in Transcaucasian Countries. Polyvalent vaccines, including FMDV serotypes O, A (two topotypes) and Asia1 from two different manufacturers, were evaluated in Georgia, Azerbaijan and Armenia. Naïve large and small ruminants were vaccinated once and a subgroup received a second booster dose. The titers of neutralizing antibodies in sera collected sequentially up to 180 DPV were determined through the Virus Neutralization Test versus homologous strains. This study led to the estimate that both the vaccines evaluated will not induce a protective and long-lasting population immunity, even after a second vaccination, stressing that consecutive administrations of both vaccines every three months are mandatory if one aspires to achieve protective herd immunity.

26 October 2026 in Pathogens
Verified
Journal Article
Open access
PDF file
MDMarina Donduashvili
Marina Donduashvili
TCTengiz Chaligava
Tengiz Chaligava
TETinatin Elbakidze
Tinatin Elbakidze
CLCharles Lamien
Charles Lamien
NFNJEUMI FELIX
NJEUMI FELIX
AGAna Gulbani
Ana Gulbani
Peste des petits ruminants (PPR) is a highly contagious disease of domestic sheep and goats and wild small ruminants across Asia, Africa, and the Middle East. In February 2024, a PPR outbreak was suspected in a flock of 1700 sheep located in the Kvemo Kartli Region of southeastern Georgia, with characteristic symptoms of PPR being observed in 95 animals. Pooled organs from three euthanized sheep were analyzed by Real-time RT-PCR as well as by gel-based conventional RT-PCR. Positive amplicons (n = 3) were sequenced, and phylogenetic analysis revealed that they were from Lineage IV PPRVs and that they were similar to viruses reported in China, Mongolia, and Pakistan. Interestingly, the 2024 PPRVs in Georgia were genetically distinct from PPRVs identified in Georgia in 2016. This suggests a new incursion of the virus. The data generated will be of interest to those working on the control and surveillance of PPR in the region, where production of small ruminants is of high importance and constitutes the main source of income for farmers.