scholarly journals Occurrence of peste des petits ruminants and its increasing threat to Europe

2019 ◽  
Vol 75 (02) ◽  
pp. 6209-2019
Author(s):  
WIESŁAW NIEDBALSKI

Peste des petits ruminants (PPR) is a highly contagious disease of small ruminants that leads to high morbidity and mortality, and thereby results in devastating economic consequences to the livestock industry. It is caused by the PPR virus (PPRV), which belongs to the genus Morbilivirus in the family Paramyxoviridae. PPR was first recorded in early 1942 in Ivory Coast, West Africa. In the following years, the disease extended its distribution to other parts of the world and now circulates throughout Northern, Eastern and West Africa, as well as Asia – in particular, China, Central Asia, Eurasia, the Indian subcontinent and the Middle East. The molecular epidemiology of PPRV, based on the sequence comparison of a small region of either the N or the F gene, has revealed the existence of four distinct lineages (I-IV) of the virus. Until June 2018, PPR had never been detected in Europe, with the exception of the European part of Turkish Thrace. However, on 24th June 2018 the Bulgarian authorities reported cases of PPR in sheep in the village of Voden, Bolyarovo municipality of Yambol region, on the border with the Thrace region of Turkey. It was the first occurrence of PPR in Bulgaria and in the European Union (EU). The source of PPR infection in Bulgaria is not clear, it could have been the illegal movement of animals, contaminated materials or humans, e.g. refuges. Due to the increased risk of introduction of PPR from North Africa and Turkey to neighbouring regions, the European Food Safety Authority (EFSA) has recently published a report assessing the risk of PPR spreading in Europe. According to a scientific opinion by the EFSA, the spread of PPRV in the territory of the UE could occur by the illegal transport of infected animals or infected animal products. In order to limit the spread and impact of PPR outbreaks in Europe, rapid detection, movement restriction, prompt culling of infected herds and disinfection measures should be introduced immediately. The control and eventual eradication of PPR is now one of the top priorities for the Food and Agriculture Organization (FAO) and the World Organization for Animal Health (OIE). In 2015, the international community agreed on a global strategy for PPR eradication, setting 2030 as a target date for elimination of the disease.

2020 ◽  
Vol 76 (03) ◽  
pp. 6380-2020
Author(s):  
WIESŁAW NIEDBALSKI

Peste des petits ruminants (PPR) is a highly contagious viral disease of domestic and wild small ruminants caused by the peste des petits ruminants virus (PPRV), which belongs to the genus Morbilivirus in the family Paramyxoviridae. The PPRV causes disease in goats and sheep, as well as in wild ruminants, such as gazelle, deer, antelope, Nubian ibex, gemsbok and others. PPR was first recorded in early 1942 in Ivory Coast, West Africa, and spread to around 70 countries in Africa, the Middle East and Asia – regions that are home to over 80% of the world’s sheep and goats. Until 2018, PPR had never been detected in Europe. On 24th June 2018, however, the Bulgarian authorities reported cases of PPR in sheep in the village of Voden, Bolyarovo municipality of Yambol region, on the border with the Thrace region of Turkey. It was the first occurrence of PPR in Bulgaria and in the European Union (EU). The control and eventual eradication of PPR is now one of the top priorities for the Food and Agriculture Organization (FAO) and the World Organization for Animal Health (OIE). In 2015, the international community agreed on a global strategy for PPR eradication, setting 2030 as a target date for elimination of the disease. The aim of this paper was to highlight future research that could be performed to guide and facilitate the PPR eradication programme. Such research includes studies on PPR transmission and epidemiology, as well as the development and application of new-generation PPR vaccines capable of differentiating infected from vaccinated animals (DIVA). Moreover, there is a need for research to improve and adapt existing diagnostic techniques as well as to develop novel PPRV recognition methods, such as a lateral flow device for in-field use, that accelerate decisions about the implementation of control measures.


Viruses ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 313 ◽  
Author(s):  
Felix Njeumi ◽  
Dalan Bailey ◽  
Jean. Jacques Soula ◽  
Bouna Diop ◽  
Berhe G. Tekola

Peste des Petits Ruminants (PPR) is a highly contagious viral disease of both domestic (goats and sheep) and wild ruminants. Caused by a morbillivirus, that belongs to the family Paramyxoviridae. The disease is clinically and pathologically similar to rinderpest of cattle and human measles. PPR is one of the most economically devastating viral diseases of small ruminants. In April 2015, the Food and Agriculture Organization of the United Nations (FAO) and the World Organisation for Animal Health (OIE) launched the PPR Global Control and Eradication Strategy (PPR GCES) with the vision for global eradication by 2030. There is a strong and lasting international consensus to eradicate the disease in order to protect the livelihoods of the world’s poorest populations. As with any disease, eradication is feasible when, policy, scientific and technical challenges are addressed. Ten majors challenges are described in this paper namely: understanding small ruminant production, facilitating research to support eradication, refining laboratory testing, improving epidemiological understanding of the virus, defining infection of wildlife and other species, optimizing vaccine delivery and novel vaccines, developing better control of animal movement, heightening serological monitoring, understanding socio-economic impact, and garnering funding and political will.


Viruses ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 838
Author(s):  
Bryony A. Jones ◽  
Mana Mahapatra ◽  
Daniel Mdetele ◽  
Julius Keyyu ◽  
Francis Gakuya ◽  
...  

Peste des petits ruminants (PPR) is a viral disease of goats and sheep that occurs in Africa, the Middle East and Asia with a severe impact on livelihoods and livestock trade. Many wild artiodactyls are susceptible to PPR virus (PPRV) infection, and some outbreaks have threatened endangered wild populations. The role of wild species in PPRV epidemiology is unclear, which is a knowledge gap for the Global Strategy for the Control and Eradication of PPR. These studies aimed to investigate PPRV infection in wild artiodactyls in the Greater Serengeti and Amboseli ecosystems of Kenya and Tanzania. Out of 132 animals purposively sampled in 2015–2016, 19.7% were PPRV seropositive by ID Screen PPR competition enzyme-linked immunosorbent assay (cELISA; IDvet, France) from the following species: African buffalo, wildebeest, topi, kongoni, Grant’s gazelle, impala, Thomson’s gazelle, warthog and gerenuk, while waterbuck and lesser kudu were seronegative. In 2018–2019, a cross-sectional survey of randomly selected African buffalo and Grant’s gazelle herds was conducted. The weighted estimate of PPRV seroprevalence was 12.0% out of 191 African buffalo and 1.1% out of 139 Grant’s gazelles. All ocular and nasal swabs and faeces were negative by PPRV real-time reverse transcription-polymerase chain reaction (RT-qPCR). Investigations of a PPR-like disease in sheep and goats confirmed PPRV circulation in the area by rapid detection test and/or RT-qPCR. These results demonstrated serological evidence of PPRV infection in wild artiodactyl species at the wildlife–livestock interface in this ecosystem where PPRV is endemic in domestic small ruminants. Exposure to PPRV could be via spillover from infected small ruminants or from transmission between wild animals, while the relatively low seroprevalence suggests that sustained transmission is unlikely. Further studies of other major wild artiodactyls in this ecosystem are required, such as impala, Thomson’s gazelle and wildebeest.


Author(s):  
M. Shaheen ◽  
S. Bashir ◽  
N. Hassan ◽  
Z.A. Akhoon ◽  
A. Muhee

Mycoplasma infection of the respiratory tract of goats is prevalent worldwide including the South Asian sub-continent. Owing to intensive and large scale goat farming, the incidence of the disease is on an increase. Among various species of mycoplasma, Mycoplasma capricolum subspecies Capri pneumoniae is increasingly incriminated in Contagious Caprine Pleurapneumonia (CCPP) in goat populations with considerable economic fallout in the form of high morbidity and mortality. The disease manifestations in caprines are recorded as anorexia, high febrile reaction and respiratory embarrassment in the shape of clinical dyspnoea, polypnea, paroxysmal cough and sero-purulent nasal discharges. The disease is thus contracted by the healthy animals through aerosol, contaminated feed and water sources in the herd premises, without a protective immunity and that the conferred immunity in recovered cases being short-lived. The true lesions of CCPP are confined to the lung alveolar tissues of infected goats, which distinguish it from other respiratory diseases of small ruminants caused by the members of the Mycoplasma mycoides cluster. Atypical pneumonia caused by the mycoplasma infection of goats, also known as Contagious Caprine Pleuropneumonia (CCPP) has been more often reported from Africa and Asia than Europe. Classical, acute CCPP attributed to Mycoplasma capricolum subsp. Capri pneumoniae, originally known asthe F38 biotype (World Organisation for Animal Health, 2008) causes heavy kid mortality. Two other organisms in this group, M. mycoides subsp. capri and M. mycoides subsp. mycoides large-colony type, can cause disease in small ruminants that clinico-pathologically mimics CCPP but may have extra pulmonary signs and lesions, sometimes. Mycoplasma Capri pneumoniae and other members of the M. mycoides cluster cross-react in serological tests and share biochemical and genetic similarities. The most favourable epidemiological scenario in the Sub-continent is the hot humid climate during monsoons. The diversity and multi-etiological subspecies involved in the disease is detrimental in the development of an effective vaccine even though in some places a liquid vaccine is presently in use. At other places, anti-mycoplasmal antibiotics of aminoglycoside and fluoroquinolone and perhaps the macrolide groups remain to be the main option in preventing flock mortalities.


2021 ◽  
Vol 77 (05) ◽  
pp. 226-231
Author(s):  
WIESŁAW NIEDBALSKI ◽  
ANDRZEJ FITZNER ◽  
KRZYSZTOF BULENGER ◽  
ANDRZEJ KĘSY

Peste des petits ruminants (PPR) is a highly contagious and economically important, viral disease of small ruminants caused by the peste des petits ruminants virus (PPRV), which belongs to the genus Morbilivirus in the family Paramyxoviridae. PPR control is achieved mostly through vaccination and/or slaughter of susceptible animals coupled with clinical or laboratory-based diagnosis. Since clinical signs of PPR are not disease-specific and clinical diagnostics is not reliable, it should be confirmed by laboratory testing. Laboratory confirmation of clinical suspicions is made by detection of PPRV in blood, swabs or post-mortem tissues through classical virus isolation (VI), agar gel immunodiffusion (AGID)/agar gel precipitation test (AGPT), counter-immunoelectrophoresis (CIE), immunoperoxidase test (IPT) or enzyme-linked immunosorbent (ELISA) assays. However, these conventional methods have been superseded by more rapid, sensitive and accurate molecular diagnostic techniques based on the amplification of parts of either nucleocapsid (N) or fusion (F) protein gene, such as RT-PCR, real-time RT-PCR, reverse transcription loop-mediated isothermal amplification (RT-LAMP), reverse transcription recombinase polymerase amplification (RT-RPA) and Oxford nanopore MinION technology. Although these molecular diagnostic assays are accurate, rapid and sensitive, they have to be performed in laboratory settings, and samples must be transported under appropriate conditions from the field to the laboratory, which can delay the confirmation of PPRV infection. The recently developed immunochromatographic lateral flow device (IC-LFD) assay can be used in the field (“pen-side”) without the need for expensive equipment, so a well-established laboratory is not required. The control and eventual eradication of PPR is now one of the top priorities for the Food and Agriculture Organization (FAO) and the World Organization for Animal Health (OIE). In 2015, the international community agreed on a global strategy for PPR eradication, setting 2030 as a target date for elimination of the disease


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Aziz-ul-Rahman ◽  
Muhammad Abubakar ◽  
Muhammad Hidayat Rasool ◽  
Shumaila Manzoor ◽  
Muhammad Saqalein ◽  
...  

Peste des petits ruminants virus (PPRV) is causing infectious disease with high morbidity and mortality rate in domestic and wild small ruminants of Pakistan with valuable economical losses. The present study was carried out to investigate risk factors of PPRV in domestic small ruminants which were present in the vicinity of wildlife parks. A total of 265 sera samples (27 wild ruminants and 238 domesticated small ruminants) from apparently healthy animals from two different wildlife parks were collected and analysed for PPRV antibodies. Also, 20 nasal swabs from domestic small ruminants showing respiratory signs were collected to check for presence of PPRV antigen. Competitive ELISA revealed highest proportions of anti-PPRV antibodies in domestic small ruminants around the Wildlife Park at Lahore (35%) as compared to Faisalabad (13%), with no existence of PPRV antibodies in tested serum of wild ruminants at these parks. Higher seropositivity was observed in females (25.6%) than in males (5.1%) and in goats (34.5%) compared to sheep (11.2%). The results of N-gene based RT-PCR highlight the absence of PPRV due to lack of current PPR outbreak in the region during study period. Even though grazing was not a significant risk factor, there is still a possibility of wildlife-livestock interactions for feed and water reservoirs, resulting in spillover of PPR to wildlife. Keeping in view the high seropositivity and risk of PPR, vaccination should be adopted to avoid circulation of PPRV among wild and domestic small ruminants (sheep and goats).


2019 ◽  
Vol 2 (2) ◽  
pp. 44-46
Author(s):  
Shafiq Ahmed ◽  
Muhammad Shafee ◽  
Abdul Razzaq ◽  
Muhammad Rahim Niazi ◽  
Abdul Wahid

Bluetongue is non contagious vector borne viral disease of small ruminants. It transmits by biting of culicoids midges and causes severe economic losses to animal owner in term of high morbidity, decreased production and impaired reproduction. Balochistan, being largest province of the country have scattered population in far remote areas. About 70% of the provincial population rely upon livestock rearing for their livelihood. Kalat is largest division of the province that stretches from Kalat city upto Lasbella including Khuzdar, Kharan and Awaran. It is located on main RCD route that will ultimately boost the animal marketing and their easy access to main market. Although different vaccines are practiced throughout the province but no such vaccine is available against BTV in the country. That’s why animals are facing problems of some undiagnosed diseases. This review provides necessary information about disease in the region. It is need of the time to educate farmer and strict vigilance may be practiced for proper and timely vaccination of all animals to curtail deadliest diseases in the region. 


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9035
Author(s):  
Maged Gomaa Hemida ◽  
Hussain Mohammed Alghadeer ◽  
Mohammed Alhammadi ◽  
Sayed Ali

Background The peste-des-petits-ruminants virus (PPRV) is a highly devastating virus of small ruminants in many parts of the world, including the Kingdome of Saudi Arabia. Therefore, our objectives were (1) to conduct a molecular prevalence study of PPRV in sheep and goat across the KSA and (2) to isolate and identify currently circulating PPRV lineages. Swabs and tissue specimens were collected from 97 herds suspected to be infected with PPRV across the Kingdome of Saudi Arabia (KSA). Testing for the presence of the virus was done by the real-time PCR. Confirmation of the identity of the reactions was done by the gel-based-PCR then by sequencing of the partial PPRV genome. Results Our results revealed that 24.1% of the tested specimens were PPRV-positive. Isolation of PPRV was successful from samples using the Vero cell line. Sequence analysis of some partial PPRV genes (N, F, M, L, P, and H) revealed that these strains were belonging to lineage IV of the PPRV. Conclusions This is the first study to conduct both the nationwide prevalence, isolation, and molecular characterizations of the PPRV in the KSA. Continuous surveillance and monitoring of the circulating strains of PPRV among sheep and goats will contribute substantially to the global eradication campaign of such a virus.


2017 ◽  
Vol 19 (3) ◽  
pp. 22-26 ◽  
Author(s):  
Undrakhbayar Ts. ◽  
Uuganbayar E. ◽  
Odbileg R.

PPR (Peste des Petits Ruminants) is a transboundary disease, listed in the OIE Terrestrial Animal Health Code, which Mongolia and other countries are obligated to report the disease to the OIE according to the criteria [1]. Purpose of this study is to conduct sero-epidemiological survey for detection of PPR antibody in livestock and susceptible animals from aimag, soums near border area because 244 outbreaks have been recorded [2] in China mainland since September, 2013. A total of 1950 goat and sheep serum samples from 52 soums of 15 aimags have been examined by “ID VET” Competitive ELISA kit for antibody detection. Result showed that PPR virus antibodies have been found in 12 samples from 1550 sheep, and 4 samples from 400 goat samples which have been examined. The same result has been shown after the re-testing the positive samples by ELISA with the serum titration of 1:4 and 1:8. PPR Global strategy for prevention, control and eradication of PPR by 2030, has been developed by OIE and FAO [14]. PPR recommendation has been developed in accordance with the Global strategy and sero-surveillance conducted in Mongolia.


Animals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 900
Author(s):  
Guido Ruggero Loria ◽  
Luigi Ruocco ◽  
Gabriele Ciaccio ◽  
Francesco Iovino ◽  
Robin A. J. Nicholas ◽  
...  

After almost 40 years, the 27 member states (MS) of the European Union (EU) will comply with the European Law 429/2016 in 2021 by completing a process of unification and harmonization of all regulations related to animal health between MS. These new provisions are based on modern scientific principles on animal health, on long-term epidemiological data, and, above all, on the most current risk assessment and analysis. The paper describes all changes and updates, which will impact the Italian current National regulation. A total of 58 animal diseases have been included in the Annex II (“Listing”) and Annex IV (“Categorization”) of the new Delegated Act (DA 2018/1629). Five diseases comprising the great viral epizooties were automatically included on the list because of their primary importance. These diseases include foot and mouth disease (FMD), African swine fever (ASF), classical swine fever (CSF), highly pathogenic avian influenza (HPAI), and African horse sickness (AHS). Another 53 diseases have been identified by the ad hoc assessment on listing and categorization of animal diseases developed by the European Food Safety Association. Seventeen communicable diseases of the Order Artiodactlya (sheep, goats, deer, etc.) have been listed including foot and mouth disease, sheep and goat pox, and pestes de petits ruminants. In addition, other endemic diseases affecting more than one species include blue tongue, tuberculosis, brucellosis, and anthrax. There are five categories (A-E) based on the degree of action to be undertaken throughout the EU for each disease. These vary from complete eradication for diseases not normally found in the EU like FMD (category A) for establishing surveillance for diseases like West Nile that present high risk but lack control tools (category E).


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