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Proceedings of the 3rd Seminar on Food-borne Parasitic Zoonoses | Food- and water-borne parasitic zoonoses in the 21st century
2001
Waikagul, Jitra | Cross, John H. | Supavej, Suvanee
Cryptosporidium: Detection in water and food Texte intégral
2010
Smith, H. V. (Huw V) | Nichols, Rosely A.B.
Water and food are major environmental transmission routes for Cryptosporidium, but our ability to identify the spectrum of oocyst contributions in current performance-based methods is limited. Determining risks in water and foodstuffs, and the importance of zoonotic transmission, requires the use of molecular methods, which add value to performance-based morphologic methods. Multi-locus approaches increase the accuracy of identification, as many signatures detected in water originate from species/genotypes that are not infectious to humans. Method optimisation is necessary for detecting small numbers of oocysts in environmental samples consistently, and further work is required to (i) optimise IMS recovery efficiency, (ii) quality assure performance-based methods, (iii) maximise DNA extraction and purification, (iv) adopt standardised and validated loci and primers, (v) determine the species and subspecies range in samples containing mixtures, and standardising storage and transport matrices for validating genetic loci, primer sets and DNA sequences.
Afficher plus [+] Moins [-]Dracunculiasis: water-borne anthroponosis vs. food-borne zoonosis Texte intégral
2020
Galán-Puchades, M.T.
Dracunculiasis is the first parasitic disease set for eradication. However, recent events related to the Dracunculus medinensis epidemiology in certain African countries are apparently posing new challenges to its eradication. Two novel facts have emerged: the existence of animal reservoirs (mainly dogs but also cats and baboons), and possibly a new food-borne route of transmission by the ingestion of paratenic (frogs) or transport (fish) hosts. Therefore, instead of being exclusively a water-borne anthroponosis, dracunculiasis would also be a food-borne zoonosis. The existence of a large number of infected dogs, mainly in Chad, and the low number of infected humans, have given rise to this potential food-borne transmission. This novel route would concern not only reservoirs, but also humans. However, only animals seem to be affected. Dracunculus medinensis is on the verge of eradication due to the control measures which, classically, have been exclusively aimed at the water-borne route. Therefore, food-borne transmission is probably of secondary importance, at least in humans. In Chad, reservoirs would become infected through the water-borne route, mainly in the dry season when rivers recede, and smaller accessible ponds, with a lower water level containing the infected copepods, appear, whilst humans drink filtered water and, thus, avoid infection. The total absence of control measures aimed at dogs (or at other potential reservoirs) up until the last years, added to the stimulating reward in cash given to those who find parasitized dogs, have presumably given rise to the current dracunculiasis scenario in Chad.
Afficher plus [+] Moins [-]Mycobacteria in water, feedstocks and food: analysis of publications Texte intégral
2010
Kaevska, M.,Vyzkumny Ustav Veterinarniho Lekarstvi, Brno (Czech Republic) | Hruska, K.,Vyzkumny Ustav Veterinarniho Lekarstvi, Brno (Czech Republic)
Papers on mycobacteria in food, feed and water, published between 1945 and 2010 and indexed in the database Web of Science (Thomson Reuters), were ranked according to authors, institutions, countries and source titles. The total number of papers on mycobacteria and food, and mycobacteria and water were 1,486 and 1,419, respectively. More than 40% of papers have been published in the last five years. In addition to publications in peer reviewed journals the archives of ProMED-mail and the Rapid Alert System for Food and Feed of the European Union were also searched. It is evident that much attention is being paid to mycobacteria in food, feed and water as they likely pose a public health risk.
Afficher plus [+] Moins [-]Food and animal borne diseases sourcebook
1995
Bellenir, Karen | Dresser, Peter D.
Basic information about diseases that can be spread to humans through the ingestion of contaminated food or water or by contact with infected animals and insects, such as Botulism, E. Coli, Hepatitis A, Trichinosis, Lyme Disease, & Rabies, along with information regarding prevention and treatment methods & including a special section for international travelers describing diseases such as Cholera, Malaria, Travelers diarrhea & yellow fever & offering recommendations for avoiding illness.
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