Mycotoxins and coccidiosis in poultry - co-occurrence, interaction, and effects.

Avian coccidiosis, a common disease caused by species, results in significant losses in global poultry production. Mycotoxins are low-molecular-weight natural products (i.e.

The Frequency of Porcine Cysticercosis and Factors Associated with Infection in the Municipality of Tuchín-Córdoba, Colombia.

Taeniasis and cysticercosis are parasitic infections that affect humans and pigs. Their global distribution constitutes a serious public health issue with significant implications for pork production. The purpose of this study was to evaluate the presence of porcine cysticercosis in backyard swine from 42 indigenous communities throughout Tuchín-Córdoba, Colombia.

Gestational monitoring in buffalo females: detection of by PCR.

This study establishes the serological frequency against on day zero and the presence of DNA surveyed throughout the gestation of females in a bovine buffalo system in the central zone of the state of Veracruz, Mexico. Blood samples were taken from 11 females in 6 different sampling periods and analyzed for antibodies detection on day zero. DNA detection by PCR was performed on all sampling periods.

First isolation of Rickettsia amblyommatis from Amblyomma mixtum in Colombia.

Background: Rickettsiae are obligate intracellular Gram-negative bacteria that are the causative agent of rickettsioses and are spread to vertebrate hosts by arthropods. There are no previous reports of isolation of Rickettsia amblyommatis for Colombia.

Methods: A convenience sampling was executed in three departments in Colombia for direct collection of adult ticks on domestic animals or over vegetation.

Occurrence of Eimeria spp. in Wayúu goat herds in the Municipality of Maicao, La Guajira, Colombia.

The department of La Guajira is considered the region with the largest goat population in Colombia. The disease caused by protozoa of the genus Eimeria can result in significant economic losses in goat production, threatening the region's food security. The objective of this study was to identify the occurrence of coccidiosis produced by Eimeria spp.

Neglected zoonotic helminthiases in wild canids: new insights from South America.

The global threat of neglected tropical diseases (NTDs) constitutes a public health issue in underdeveloped countries. Zoonotic helminthiases are the most common human NTD agents in developing countries in sub-Saharan Africa, Asia, and the Americas, causing a global burden of disease that exceeds that of more recognized infectious diseases such as malaria and tuberculosis. Wild canids are well-known mammals that act as natural reservoirs of zoonotic-relevant helminthiasis worldwide, thus playing a pivotal role in their epidemiology and transmission to humans.

Multidrug-resistant spp. in fecal samples of pigs with suspected salmonellosis in Antioquia, Colombia, 2019-2021.

Objectives: To determine the proportion of in fecal samples of live pigs with suspected salmonellosis analyzed at the diagnostic unit of the University of Antioquia, Colombia between 2019 and 2021, and examine the serotypes and antimicrobial resistance patterns.

Methods: This was a laboratory-based cross-sectional study of routine data on fecal samples received from pig farms in all nine subregions of Antioquia state, Colombia. spp.

Presence of Spirometra mansoni, Causative Agent of Sparganosis, in South America.

We report molecular identification of an adult Spirometra mansoni tapeworm retrieved from a crab-eating fox (Cerdocyon thous) in Colombia, confirming presence of this parasite in South America. This tapeworm is the causative agent of human sparganosis, commonly reported from Southeast Asia, and represents the second congeneric species with known zoonotic potential in the Americas.

Seroprevalence and Molecular Characterization of spp. in Rats Captured near Pig Farms in Colombia.

Gram-negative spirochete spp. causes leptospirosis. Leptospirosis is still a neglected disease, even though it can cause potentially fatal infections in a variety of species including humans.

Glycolysis, monocarboxylate transport, and purinergic signaling are key events in -induced NETosis.

The protozoan parasite is the causative agent of bovine coccidiosis, an enteric disease of global importance that significantly affects cattle productivity. Previous studies showed that bovine NETosis-an important early host innate effector mechanism of polymorphonuclear neutrophil (PMN)-is elicited by stages. So far, the metabolic requirements of -triggered NET formation are unknown.

Nationwide Seroprevalence Survey of Derived Antigens and Specific Antibodies in Dogs from Colombia.

is a cardiopulmonary nematode, causing several clinical manifestations in dogs, e.g., severe respiratory signs, coagulopathy, and gastrointestinal or neurological signs.

Chicken Coccidiosis: From the Parasite Lifecycle to Control of the Disease.

The poultry industry is one of the main providers of protein for the world's population, but it faces great challenges including coccidiosis, one of the diseases with the most impact on productive performance. Coccidiosis is caused by protozoan parasites of the genus , which are a group of monoxenous obligate intracellular parasites. Seven species of this genus can affect chickens (, each with different pathogenic characteristics and targeting a specific intestinal location.

The Neglected Angio-Neurotrophic Parasite (Nematoda: Angiostrongylidae): Northernmost South American Distribution, Current Knowledge, and Future Perspectives.

is a rare metastrongyloid nematode in South America that has begun to gain relevance in feline internal medicine as a differential diagnosis of progressive degenerative myelopathy disorders. The parasite life cycle has not been fully elucidated but probably involves invertebrate gastropod fauna as obligate intermediate hosts; thus, . remaining an extremely neglected parasitosis.

Serosurveillance and risk factors for Neospora caninum infection in water buffaloes (B. bubalis) from central and southern Mexico.

The water buffalo (B. bubalis) is an alternative to cattle ranching in several regions of southern Mexico. Here we report seroprevalence and risk factors associated with the protozoan parasite, Neospora caninum, in water buffaloes in six buffalo production units, in municipalities from central and southern Veracruz, Mexico.

Activity of the Giardia intestinalis proteasome during encystation and its connection with the expression of the cyst wall protein 1 (CWP1).

Giardia is a parasite whose life cycle is composed of two stages: replicative trophozoites, responsible for the symptoms of the disease, and infective cysts, resistant to adverse environments outside of hosts. Proteasomes are multicatalytic peptidase complexes responsible for the specific degradation of proteins in eukaryotic cells. This study assessed the proteasome activity in the trophozoite and during encystation.

Parasites Circulating in Wild Synanthropic Capybaras (): A One Health Approach.

Capybaras () are affected by a wide range of protozoan and metazoan-derived parasitic diseases. Among parasites of free-ranging capybaras are soil-, water-, food- and gastropod-borne parasitosis, today considered as opportunistic infections in semiaquatic ecosystems. The overlapping of the capybara's natural ecological habitats with human and domestic animal activities has unfortunately increased in recent decades, thereby enhancing possible cross- or spillover events of zoonotic parasites.

Intestinal Parasites of Neotropical Wild Jaguars, Pumas, Ocelots, and Jaguarundis in Colombia: Old Friends Brought Back from Oblivion and New Insights.

Neotropical wild felids (NWF) are obligate carnivore species present in Central and South America, and some are considered endangered due to constantly decreasing populations. NWF can become infected by a wide range of protozoan and metazoan parasites, some of them affecting their health conditions and others having anthropozoonotic relevance. Parasitological studies on NWF are still very scarce, and most data originated from dead or captive animals.

Infections in Domestic Cats () from Antioquia, Colombia.

Although infections in domestic cats () have sporadically been reported in Colombia, there is still no data available on epidemiology nor on the biology of this neglected lungworm parasite. Thus, this epidemiological study aimed to evaluate the occurrence of patent infections in domestic cats from the Colombian Federal State of Antioquia. In total, 473 fecal samples of indoor/outdoor domestic cats were collected and analyzed thereafter by the Baermann funnel migration technique for the presence of first stage larvae 1 (L1).

Multilocus genotyping of Giardia intestinalis in pet dogs of Medellín Colombia.

According to a few parasitological and epidemiological studies, Giardia is the most prevalent parasitic infection among pet dogs in the city of Medellín, the second-largest city in Colombia. This study determined the assemblages of Giardia in the fecal samples of dogs obtained from 18 veterinary centers of Medellín. One hundred fecal samples of dogs diagnosed with Giardia using microscopy were analyzed via nested polymerase chain reaction (PCR) using three genes (gdh, bg, and tpi).

Prevalence of Antimicrobial Resistance in Bacterial Isolates from Dogs and Cats in a Veterinary Diagnostic Laboratory in Colombia from 2016-2019.

The susceptibility to antimicrobials of bacterial isolates from dogs ( = 1256) and cats ( = 94) was retrospectively evaluated in a veterinary diagnostic laboratory over a 4-year period (2016-2019). Out of 1316 isolates in dogs, 771 were spp. distributed as follows: ( = 406), ( = 160), ( = 104), and coagulase-negative ( = 101).

Overview of Poultry Life Cycle and Host-Parasite Interactions.

Apicomplexan parasites of the genus are organisms which invade the intestinal tract, causing coccidiosis, an enteric disease of major economic importance worldwide. The disease causes high morbidity ranging from an acute, bloody enteritis with high mortality, to subclinical disease. However, the presence of intestinal lesions depends on the species.

Prevalence of Toxocara spp. in dogs and cats in South America (excluding Brazil).

Toxocariasis is a worldwide anthropozoonosis caused by Toxocara spp. nematodes. High prevalences of the disease has been found in developing countries, particularly in regions with poor sanitary conditions.

Optimized excystation protocol for ruminant Eimeria bovis- and Eimeria arloingi-sporulated oocysts and first 3D holotomographic microscopy analysis of differing sporozoite egress.

Successful excystation of sporulated Eimeria spp. oocysts is an important step to acquire large numbers of viable sporozoites for molecular, biochemical, immunological and in vitro experiments for detailed studies on complex host cell-parasite interactions. An improved method for excystation of sporulated oocysts and collection of infective E.

Giardia is the most prevalent parasitic infection in dogs and cats with diarrhea in the city of Medellín, Colombia.

Parasitic agents are a common cause of diarrhea in dogs and cats and, thus, determining their prevalence is essential to establish preventive and control measures. This retrospective study examined the fecal tests records from 1111 dogs and 203 cats with diarrhea submitted to a diagnostic laboratory in the city of Medellin between January and May 2018. The detection of parasites was carried out by direct smears and simple flotation methods.

Interpretation of the larval immersion test with ivermectin in populations of the cattle tick Rhipicephalus (Boophilus) microplus from Colombian farms.

Interpreting in vitro bioassays used to determine resistance against acaricides in Rhipicephalus microplus can be challenging without parallel in vivo studies that assess for lost efficacy. The larval immersion test (LIT) is currently the most widely used bioassay to detect ivermectin resistance. The objective of this study was to compare results of the LIT and a field trial using ivermectin in naturally infested cattle.