Multiple Typing Approach to Characterize Toxoplasma gondii Strains from Captive and Livestock Species in Northern Italy Suggests the Circulation of Type-II Variants
2024

Characterizing Toxoplasma gondii Strains in Northern Italy

Sample size: 87 publication 10 minutes Evidence: moderate

Author Information

Author(s): Dini Filippo Maria, Salas-Fajardo Martha Ynés, Taddei Roberta, Ramini Mattia, Vianello Silvia, Caffara Monica, Galuppi Roberta

Primary Institution: Department of Veterinary Medical Sciences (DIMEVET), Alma Mater Studiorum University of Bologna

Hypothesis

What are the genetic characteristics of Toxoplasma gondii strains found in captive and livestock species in Northern Italy?

Conclusion

The study identified a predominance of Type II Toxoplasma gondii strains in animals from Northern Italy, particularly linked to abortion outbreaks in sheep and a case of acute illness in a lemur.

Supporting Evidence

  • Most cases of Toxoplasma gondii were linked to abortion outbreaks in sheep and goats.
  • One case of acute illness was found in a lemur.
  • Genetic markers showed links between strains found in Italy, Spain, and France.

Takeaway

This study looked at a parasite that can make both animals and people sick, and found that a specific type of this parasite is common in sheep and other animals in Northern Italy.

Methodology

The study used three genotyping methods: microsatellite analysis, PCR-RFLP, and partial sequencing of GRA6 and SAG3 genes to analyze 87 Toxoplasma gondii-positive DNA samples.

Potential Biases

Potential bias may arise from the varying number of typing loci used in different studies, which could affect strain characterization.

Limitations

The study's findings are based on a limited number of samples and may not represent the full diversity of Toxoplasma gondii strains in Italy.

Participant Demographics

Samples were collected from livestock, wild species, and zoo animals in Northern Italy.

Digital Object Identifier (DOI)

10.3390/ani14243597

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