CABI

About: CABI is a nonprofit organization based out in Wallingford, United Kingdom. It is known for research contribution in the topics: Population & Introduced species. The organization has 789 authors who have published 1759 publications receiving 73843 citations. The organization is also known as: Centre for Biosciences and Agriculture International.

Remote diagnosis of traumatic dental injuries using digital photographs captured via a mobile phone.

Abstract: Background Intra-oral photographs has been aided diagnosis of several pathologies in teledentistry. Mobile phone cameras may produce high quality photographs, presenting itself as a viable tool for remote diagnosis of traumatic dental injuries. Aim To evaluate the levels of inter-examiner agreement in cases of traumatic dental injuries when comparing diagnoses conducted in person and remotely. Material and Methods The sample included 40 patients with 73 traumatized teeth, and a total of 90 diagnoses, who had presented to two dental clinics, one private and the other public, in Brazil's Federal District. The dental history and clinical examination data were registered in electronic forms and digital photographs were captured with a mobile phone camera and uploaded to a cloud drive. Six remote examiners formulated their diagnoses based solely on photographic analysis. Thereafter, they were provided with additional clinical data and asked to provide a second round of diagnoses. These diagnoses were compared to those conducted in person, which were considered the gold standard. The data were analyzed with Gwet's AC1 inter-examiners measure to evaluate the agreement between the in-surgery and remote diagnoses. Results The levels of inter-examiner agreement between the in-surgery and remote diagnoses formulated exclusively with images were 0.83 or higher (95% confidence interval: 0.73–0.91), and 0.93 or higher (95% confidence interval: 0.88–0.97) when clinical information was available. Conclusion The precision of the remote diagnoses was comparable to the diagnoses conducted in person. The levels of inter-examiner agreement were higher when clinical data were included with the images. Mobile phones may be an effective tool for capturing images that assist in the remote diagnosis of traumatic dental injuries. This article is protected by copyright. All rights reserved.

The sentinel tree nursery as an early warning system for pathway risk assessment: Fungal pathogens associated with Chinese woody plants commonly shipped to Europe.

Abstract: Introduction of and invasion by alien plant pathogens represents the main cause of emerging infectious diseases affecting domesticated and wild plant species worldwide. The trade in living plants is the most common pathway of introduction. Many of the alien tree pathogens recently introduced into Europe were not previously included on any quarantine lists. To help determine the potential risk of pest introduction through trading of ornamental plants, a sentinel nursery was established in Beijing, China in 2008. The sentinel nursery planting included four of the most common ornamental woody species shipped to Europe including Ilex cornuta var. fortunae, Zelkova schneideriana, Fraxinus chinensis and Buxus microphylla. Symptoms developing on these species within the sentinel nursery were detected in 2013 and consisted of necrotic spots on leaves, canker and stem necrosis, shoot blight and shoot necrosis. Fungi associated with the trees and their symptoms included Alternaria alternata detected from all hosts; Diaporthe liquidambaris and Diaporthe capsici from bark and leaf necrosis of Zelkova schneideriana; Botryosphaeria dothidea and Nothophoma quercina from stem cankers on Fraxinus chinensis and leaf necrosis on Ilex cornuta; and Pseudonectria foliicola from leaf necrosis on Buxus microphylla. Next generation sequencing analysis from asymptomatic tissues detected eighteen OTU’s at species level among which some taxa had not been previously recorded in Europe. These results clearly demonstrate that looking at trees of internationally traded species in the region of origin can reveal the presence of potentially harmful organisms of major forestry, landscape or crop trees. Results of this study also provide an indication as to how some disease agents can be introduced using pathways other than the co-generic hosts. Hence, sentinel nurseries represent one potential mechanism to address the current lack of knowledge about pests in the countries from where live plants are shipped and the threats they represent to native flora and crops in importing countries.

Growth and pathogenicity of isolates of the fungus Metarhizium anisopliae against the parasitic mite, Psoroptes ovis: effects of temperature and formulation.

Abstract: Psoroptes mites (Acari: Psoroptidae) are important ectoparasites of mammals, and are of particular economic significance as the agents of mange in sheep. To be effective against mites, putative fungal biocontrol agents must be able to operate at the relatively high temperatures and humidities found at the sheep skin surface. To consider this, the growth rates of different isolates of the entomopathogenic fungus Metarhizium anisopliae (Metschnikoff) Sorokin (Deuteromycotina: Hyphomycetes) were compared and the pathogenicity of these isolates against Psoroptes derived from rabbits (Psoroptes ovis Hering, syn P cuniculi) were evaluated at temperatures between 28 degrees C and 40 degrees C, and when formulated in either Tween 80 or silicone oil. For this study four multi-conidia, arthropod-derived, isolates of M anisopliae were used: from the USA, France, Denmark and Brazil. One single-conidia culture derived from the US isolate was also included in the investigation. Fungal growth was higher at the lower temperatures and none of the isolates grew at 40 degrees C. The growth of the US and single-conidia isolate declined markedly with temperature. In contrast, the Danish, French and Brazilian isolates grew almost as well at 32 degrees C and 35 degrees C as at 28 degrees C and 30 degrees C. The French and Brazilian isolates showed some growth at 37.5 degrees C but the Danish and US isolates did not. The number of fatal infections which resulted from exposure of mites to the fungal isolates was also strongly influenced by temperature. At 30 degrees C all isolates gave between 70 and 90% infection. The number of infections declined with increasing temperature and no infections were seen at 40 degrees C. However, the French and Danish isolates of M anisopliae gave higher numbers of infections than the other isolates at elevated temperatures. When formulated in silicone oil, significantly higher levels of infection were obtained than when formulated in Tween 80, even at the relatively high temperature of 37.5 degrees C. It is suggested that high-temperature adapted isolates of M anisopliae formulated in silicone oil offer good candidates as control agents under the conditions found at the sheep skin surface.

Horizon scanning to predict and prioritize invasive alien species with the potential to threaten human health and economies on Cyprus

Abstract: Invasive Alien Species (IAS) are known to be a major threat to biodiversity and ecosystem function and there is increasing evidence of their impacts on human health and economies globally. We undertook horizon scanning using expert-elicitation to predict arrivals of IAS that could have adverse human health or economic impacts on the island of Cyprus. Three hundred and twenty five IAS comprising 89 plants, 37 freshwater animals, 61 terrestrial invertebrates, 93 terrestrial vertebrates, and 45 marine species, were assessed during a two-day workshop involving thirty-nine participants to derive two ranked lists: (1) IAS with potential human health impacts (20 species ranked within two bands:1-10 species or 11-20 species); and, (2) IAS with potential economic impacts (50 species ranked in three bands of 1-10, 11-20 and 21-50). Five species of mosquitoes (Aedes aegypti, Aedes albopictus, Aedes flavopictus, Aedes japonicus and Culex quinquefasciatus) were considered a potential threat to both human health and economies. It was evident that the IAS identified through this process could potentially arrive through many pathways (25 and 23 pathways were noted for the top 20 IAS on the human health and economic impact lists respectively). The Convention on Biological Diversity Level II (subcategory) pathways Contaminant on plants, pet / aquarium / terrarium species (including live food for such species), hitchhikers in or on aeroplanes, hitchhikers in or on ship / boats, and vehicles were the main pathways that arose across both lists. We discuss the potential of horizon scanning lists to inform biosecurity policies and communication around IAS, highlighting the importance of increasing understanding amongst all stakeholders, including the public, to reduce the risks associated with predicted IAS arrivals.

A novel approach to quality assessment of plant health clinics.

Abstract: Since 2003, community-based plant health clinics have been established in several developing countries as a new, low-cost method to provide plant health advice to smallholder farmers who have limited access to advisory services. As the plant clinics are becoming more widespread, there is an increasing need to create basic procedures to regulate clinic operations. This paper describes how the concepts of ‘plant health clinic quality’ evolved from 2006 to 2009 and how a novel framework for quality assessment was developed in Nicaragua, Bangladesh, Vietnam, Bolivia and Uganda. Quality criteria for plant clinics include technical quality, timeliness, staff attitude, feasibility of advice, clinic location, materials, organization and outreach. These criteria show many similarities to those applied successfully in human and animal healthcare. Allowing plant clinic staff and their supervisors to define the quality criteria and monitoring methods themselves has helped raise awareness about clinic performance and ...