zoonotic parasites
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Aquaculture ◽  
2022 ◽  
Vol 549 ◽  
pp. 737793
Author(s):  
Asma M. Karami ◽  
Huria Marnis ◽  
Rozalia Korbut ◽  
Shaozhi Zuo ◽  
Rzgar Jaafar ◽  
...  
Keyword(s):  

Author(s):  
Svenja Koepper ◽  
Sri Nuryati ◽  
Harry W. Palm ◽  
Christian Wild ◽  
Irfan Yulianto ◽  
...  

Abstract Despite being an important component of the marine ecosystem and posing health risks to human seafood consumers, fish parasites in Indonesia have yet to be adequately described. Here, we analyzed the diet and metazoan parasite fauna of seven commercial fish species (Alectis indica, Carangoides chrysophrys, Johnius borneensis, Mene maculata, Trichiurus lepturus, Upeneus asymmetricus, U. moluccensis) landed in Java, Indonesia. We isolated 11 endoparasite species, established 22 new host and 14 new locality records, and extended parasitological records of A. indica by 24%, C. chrysophrys by 25%, J. borneensis by 40%, M. maculata by 44%, U. asymmetricus by 100%, and U. moluccensis by 17%. We genetically identified the trematode Stephanostomum cf. uku (of Bray et al. 2005) from Alecta indica for the first time in Indonesia and provided the sequence of its 28S marker. Stomach content analysis revealed seven different prey items, and the examined fish species were grouped into four feeding categories, which differed significantly in their respective endoparasite fauna. All but two examined fish species hosted potentially zoonotic nematodes, which reveal a risk for parasite-borne diseases in Indonesian food fishes and call for more consequent monitoring with regard to seafood safety in this region. With this study, we were able to establish an association between the feeding ecology and the endoparasite fauna of marine fishes which will help to better understand the transmission pathways of (potentially zoonotic) parasites in food fishes in tropical waters.


Author(s):  
Engki Zelpina ◽  
Evie Setyani ◽  
Vinsen Willy Wardhana

Trichinellosis/Trichinosis is one of the most common zoonotic parasites in the world caused by infection with Trichinella nematodes. The infection occurs after the larvae have been eaten in the muscles of the infected animal. Due to its spread and spread, several outbreaks of trichinosis have occurred around the world, which has caused serious public health problems. The main risk factor for trichinosis is the consumption of raw or undercooked meat from pigs and hunted meat. In the first stage of infection, adults nematode in the intestine can cause transient gastroenteritis, but the most serious symptoms are associated with the larval formation and muscle migration. a study conducted in India to investigate at the clinical and biochemical profile of Trichinella infection stated that clinical symptoms first appeared at 2-3 weeks after consuming pork and the symptoms would gradually disappear at 4-5 weeks, but there were also some who experienced myalgia. Supervision and implementing proper biosecurity in livestock areas by monitoring and surveillance of the risk of Trichinella infection in pig products and their derivatives as well as preventing transmission to humans.


2021 ◽  
Vol 26 ◽  
pp. 100619
Author(s):  
Daniel Antônio Braga Lee ◽  
Erick Luiz Conceição de Oliveira ◽  
Gustavo Alexis Sabillón Lee ◽  
Pablo Lopes da Silva ◽  
Patricia Oliveira Meira Santos ◽  
...  

Author(s):  
Becky Barney ◽  
Miguel Velasco ◽  
Caitlin Cooper ◽  
Andrew Rashid ◽  
Dennis Kyle ◽  
...  

Plasmodium lactate dehydrogenase (pLDH) is a common target in malaria rapid diagnostic tests (RDTs). These commercial antibody capture assays target either Plasmodium falciparum–specific pLDH (PfLDH), P. vivax–specific pLDH (PvLDH), or a conserved epitope in all human malaria pLDH (PanLDH). However, there are no assays specifically targeting P. ovale, P. malariae or zoonotic parasites such as P. knowlesi and P. cynomolgi. A malaria multiplex array, carrying the specific antibody spots for PfLDH, PvLDH, and PanLDH has been previously developed. This study aimed to assess potential cross-reactivity between pLDH from various Plasmodium species and this array. We tested recombinant pLDH proteins, clinical samples for P. vivax, P. falciparum, P. ovale curtisi, and P. malariae; and in vitro cultured P. knowlesi and P. cynomolgi. P. ovale-specific pLDH (PoLDH) and P. malariae-specific pLDH (PmLDH) cross-reacted with the PfLDH and PanLDH spots. Plasmodium Knowlesi-specific pLDH (PkLDH) and P. cynomolgi-specific pLDH (PcLDH) cross-reacted with the PvLDH spot, but only PkLDH was recognized by the PanLDH spot. Plasmodium ovale and P. malariae can be differentiated from P. falciparum by the concentration ratios of PanLDH/PfLDH, which had mean (range) values of 4.56 (4.07–5.16) and 4.56 (3.43–6.54), respectively, whereas P. falciparum had a lower ratio of 1.12 (0.56–2.61). Plasmodium knowlesi had a similar PanLDH/PvLDH ratio value, with P. vivax having a mean value of 2.24 (1.37–2.79). The cross-reactivity pattern of pLDH can be a useful predictor to differentiate certain Plasmodium species. Cross-reactivity of the pLDH bands in RDTs requires further investigation.


Pathogens ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1416
Author(s):  
Vito Colella ◽  
Rebecca J. Traub ◽  
Robin B. Gasser

A range of factors, including social, demographic and economic transformation and human-induced environmental changes, are influencing the emergence or re-emergence of zoonoses, posing new challenges in how we detect, treat and prevent such diseases [...]


2021 ◽  
Vol 9 (11) ◽  
pp. 2267
Author(s):  
María Teresa Gómez-Muñoz

The present Editorial intends to briefly describe the findings published in the Special Issue, “Parasitic diseases from wild animals with an emphasis on zoonotic infections”. Prevalence data or diagnostic techniques were the focus of several zoonotic parasites transmitted from wildlife, including the protozoa Toxoplasma, Cryptosporidium, Giardia, Blastocystis and Leishmania, and the helminths Echinococcus and Anisakis.


Author(s):  
Christine E. Broster Reix ◽  
Miharisoa Rijatiana Ramanantsalama ◽  
Carmelo Di Primo ◽  
Laëtitia Minder ◽  
Mélanie Bonhivers ◽  
...  

Trypanosoma brucei belongs to a group of important zoonotic parasites. We investigated how these organisms develop their cytoskeleton (the internal skeleton that controls cell shape) and focused on an essential protein (BILBO1) first described in T. brucei .


2021 ◽  
Vol 26 (2) ◽  
pp. 9-16
Author(s):  
Marius Stelian Ilie ◽  
Roxana Gabriela Oanea ◽  
Mirela Imre ◽  
Iasmina Luca ◽  
Tiana Florea ◽  
...  

Gastrointestinal parasites are widespread pathogenic agents and one of the main causes for mortality in young dogs and cats. Many of these zoonotic parasites are relevant in terms of public health. The presence of parasites in the animal organism causes local and general modifications in the various organs they parasitize or transit throughout their life cycle. The present study aimed to identify the most frequent gastrointestinal parasites of dogs and cats and to monitor the alterations that occur in terms of haematological and biochemical parameters. The studied animals, 25 dogs and three cats from Timiș and Caraș Severin counties, were brought to the On-call room of the University Clinics of the Faculty of Veterinary Medicine Timișoara. The laboratory methods that were used were the Willis flotation method, the Baerman larvoscopic method and the Lugol method. The haematological methods, namely flow cytometry, cytochemistry and spectrophotometry, were performed at Bioclinica Laboratories, on whole blood samples that were collected in EDTA or simple tubes. The studied animals were positive for Giardia, Cystoisospora, Dipylidium, Ancylostoma, Toxocara and Trichocephalus. The positivity rate was 57.14%, with prevalence rates according to the parasitic species ranging from 3.57% to 21.42%, with multiparasitism in 32.14%, and monoparasitism in 17.85%. The values recorded for red blood cells, haemoglobin and hematocrit followed the same trendmost of the animals being situated within physiological values, except for three dogs, that recorded values below the minimal level. In the case of MCH (mean corpuscular haemoglobin) and MCHC (mean corpuscular haemoglobin concentration) the values recorded for most dogs were within physiological limits, except for three dogs which overpassed the maximum level. Eosinophils were high in all dogs, which is a characteristic feature of parasitism. The serum urea concentrations revealed the fact that all for dogs that were taken into study had values above the maximum limit.


Author(s):  
V. Gnani Charitha ◽  
K. Venkatesh ◽  
C.V. Sesha Reddy ◽  
V. Ramya ◽  
S.V.R. Sharma

Background: Gastrointestinal (GI) parasitism in pigs is often associated with subclinical infections leading to poor weight gain and reduced market value. One of the most significant risks is pigs being the host for many zoonotic parasites and thereby threatening human health. Despite the epidemiological data being available from different states of the country, records from Andhra Pradesh are scanty. Hence, a study was conducted to determine the prevalence of gastrointestinal parasites in free range pigs of Proddatur municipality Andhra Pradesh, India. Methods: About 142 fecal samples were collected from free range pigs slaughtered in four localities of Proddatur municipality over a period of six months. The fecal samples were later subjected for parasitological examination and the tissue pieces of intestines collected from the slaughtered animals with the embedded parasites and those with pathological changes were subjected to histological staining procedure for identification. Result: Fecal examination revealed 80.98% (115/142) positivity for parasitic ova or occysts. About eleven species of parasites were identified; of them nine were helminths (83.8%) and two were protozoan (10.5%) parasites. Infection with Ascarops spp. (28.2%) and Fasciolopsis buski (17.6%) was found to be significantly (P less than 0.05) higher. The tissue sections of the intestines with pathological lesions revealed embedded parasites in intestinal mucosa infiltrated with eosinophils and mononuclear cells. The higher prevalence of GI parasites in slaughtered pigs in Proddatur region rises concern towards the impact on the health of pigs and as well as pork consumers suggesting a strategic control for GI parasites in pig farming.


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