Publications by authors named "M A Chavez-Larrea"
Article Synopsis
- Bovine trypanosomoses is a disease caused by protozoan parasites affecting cattle, leading to fever and anemia, primarily impacting dairy and meat production in parts of Africa and South America.
- A study conducted in the Galapagos Islands analyzed 170 blood samples from 19 farms on Santa Cruz Island, utilizing various PCR techniques to detect different blood parasites, revealing prevalence rates for several parasites.
- The findings indicated that 26.3% of farms had multiple blood parasites, and cattle with co-infections had higher body temperatures, marking the first detection of certain parasites in Galapagos cattle and contributing valuable insights to veterinary medicine.
Article Synopsis
- The study investigates the presence of a haemoparasite affecting bovines in Ecuador, highlighting its distribution and potential health impacts.
- The research involved collecting and analyzing 218 blood samples from two slaughterhouses in Quito and Santo Domingo, uncovering a 15.6% positivity rate for the parasite.
- Phylogenetic analysis revealed two novel isolates closely related to other genotypes found in neighboring countries, with a high rate of co-infection with other pathogens potentially exacerbating health issues in the cattle.
Article Synopsis
- - Trypanosomes are pathogens found across multiple continents, affecting various vertebrates, including neotropical primates, but there's limited information on their diversity and impact on non-human primates in the neotropical region.
- - A study analyzed 76 faecal samples from 11 non-human primate species in Ecuador (46 captive and 30 free-living) and found no trypanosome DNA using a polymerase chain reaction test, but detected two distinct species using a nested-PCR method.
- - The findings suggest that health management protocols are necessary to prevent the spread of these blood-borne pathogens among captive NHP populations and to protect personnel working with these animals.
Article Synopsis
- Babesia species are protozoa that cause anemia in animals like cattle, transmitted through ticks, and Ecuador's tropical climate supports their spread.
- A study in 21 farms (20 in El Carmen and 1 in Quito) used PCR testing to find a prevalence of 18.94% and 20.28% of cattle infected with Babesia species in those regions.
- This research marks the first molecular documentation of Babesia in Ecuador and highlights the potential for outbreaks at different altitudes due to tick mobility and unfavorable climatic conditions.
Transbound Emerg Dis
July 2021
Article Synopsis
- Bovine trypanosomosis causes significant economic losses in tropical and subtropical regions, leading to symptoms like fever, anaemia, and even death in cattle.
- In Ecuador, few studies have identified the presence of Trypanosoma spp. in cattle, but the specific species had not been determined until now.
- This study successfully identified T. vivax in cattle from Convento Village, marking the first report of this species in Ecuador, and demonstrated close genetic ties to isolates from other South American countries and West Africa through phylogenetic analysis.
