Areas of Interest
My research focuses on the epidemiology of infectious diseases with a strong emphasis on molecular epidemiology and evolution of infectious agents. My main actual activities are dedicated to the molecular epidemiology of antimicrobial resistance in commensal and pathogenic bacteria from animals.
Tracing bacteria and their genes
Current poultry projects include:
- Salmonella enteritis
- Antimicrobial resistance
- Molecular epidemiology and genomics of Enterococcus cecorum
Molecular Epidemiology of Necrotic enteritis
In this project, we studied the genetic diversity of C. perfringens in broiler chickens during their growth cycle and during feed changes. We also compared the C. perfringens genetic diversity in groups of animals submitted to diverse treatments for the prevention of necrotic enteritis.
This project is now finished, but further investigations may follow in our lab on the molecular epidemiology of antimicrobial resistance in Clostridium perfringens in the foreseable future..
- Control of the reproductive axis: Balancing act between stimulatory and inhibitory inputs.
- From the Macro to the Micro: Gel Mapping to Differentiate between Sporozoites of Two Immu-nologically Distinct Strains of Eimeria maxima (Strains M6 and Guelph).
- Molecular phylogenetics of eimeriid coccidia (Eimeriidae, Eimeriorina, Apicomplexa, Alveolata): A preliminary multi-gene and multi-genome approach.
- A linear mitochondrial genome of Cyclospora cayetanensis (Eimeriidae, Eucoccidiorida, Coc-cidiasina, Apicomplexa) suggests the ancestral start position within mitochondrial genomes of eimeriid coccidia.
- Simultaneous identification and DNA barcoding of six Eimeria species infecting turkeys using PCR primers targeting the mitochondrial cytochrome c oxidase subunit I (mtCOI) locus
- Shedding of live Eimeria vaccine progeny is delayed in chicks with delayed access to feed after vaccination
- Complete mitochondrial genome sequences from five Eimeria species (Apicomplexa; Coccidia; Eimeriidae) infecting domestic turkeys
- Description of two new Isospora species causing visceral coccidiosis in captive superb glossy starlings, Lamprotornis superbus (Aves: Sturnidae)
- The complete mitochondrial genome sequence of Hepatozoon catesbianae (Apicomplexa: Coc-cidia: Adeleorina), a blood parasite of the green frog, Lithobates (formerly Rana) clamitans
- Re-description of a genetically typed, single oocyst line of the turkey coccidium, Eimeria adenoeides Moore and Brown, 1951
- Divergent nuclear 18S rDNA paralogs in a turkey coccidium, Eimeria meleagrimitis, complicate molecular systematics and identification.
- Examination of a novel practical poultry management method to enhance the effect of live Eimeria vaccination for conventionally housed replacement layer pullets.