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Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español
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Dr. Eduardo Fano - "Cadena de Infección" de Mycoplasma hyopneumoniae, en Español

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En Español, "Cadena de Infección" de Mycoplasma hyopneumoniae - Dr. Eduardo Fano, Swine Technical Manager Americas, Boehringer Ingelheim, de la World Pork Expo 2013, Junio 5 - 7, 2013, Des Moines, IA, …

En Español, "Cadena de Infección" de Mycoplasma hyopneumoniae - Dr. Eduardo Fano, Swine Technical Manager Americas, Boehringer Ingelheim, de la World Pork Expo 2013, Junio 5 - 7, 2013, Des Moines, IA, USA.

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  • 1. Mycoplasma hyopneumoniae “Infection Chain” Eduardo Fano DVM MS PhD BIVI Swine Technical Manager Americas
  • 2. What is the current Mhyo infection picture? • Clinically Mhyo associated respiratory disease in growingfinishing units • In some cases there is a perception of lack of efficacy of vaccination protocols • Are we over focusing the strategy just in the piglet? • Are we looking at the “ whole herd’ infection picture of the disease? Are we understanding the “root’ of the problem?
  • 3. Correlation of prevalence at weaning with severity of the disease in vaccinated finishing pigs C2 Average Lung Lesion Score 15 10 5 C1 0 0 20 40 60 Prevalence at weaning (N-PCR, Nasal) R-squared= 0.5304, P-Value= 0.0009 * Fano et al., 2007
  • 4. Mycoplasma hyopneumoniae “Infection Chain” Level 1 Replacement animals External -Gilts +Gilts Horizontal transmission Lateral Level 2 spread Sow herd Vertical transmission Level 3 Wean to finish pigs Horizontal transmission Local Replacement Fano et al., 2007
  • 5. Level 1 Replacement animals
  • 6. Persistence of infection/shedding “The key factor”
  • 7. Level 2 Sow herd •Incoming gilts exposure/protection status •Incoming gilts shedding status •Sow herd instability
  • 8. Sow herd instability
  • 9. Consequence of sow herd instability: • More sow to piglet transmission (prevalence at weaning) • Variability between groups 60 Prevalence (%) 50 40 30 20 1 0 0 1 2 3 4 5 6 7 Groups 8 9 10 11 Average
  • 10. Transfer of disease from sow to piglet Level 2 Sow herd Vertical transmission Level 3 Wean to finish pigs
  • 11. Consequence of vertical transmission: • Higher the prevalence at weaning higher the clinical impact of Mhyo in finishing pigs C2 Average Lung Lesion Score 15 10 5 C1 0 0 20 40 60 Prevalence at weaning (N-PCR, Nasal) R-squared= 0.5304, P-Value= 0.0009 * Fano et al., 2007
  • 12. Level 3 Wean to finish pigs •Prevalence at weaning •Horizontal transmission rate downstream •Pig flow and W to F management •Piglet immunization •Piglet medication
  • 13. The infection chain • Clinically Mhyo associated respiratory disease in growing- finishing units • Nursery piglets exposure • Prevalence at weaning • Sow herd instability/Vertical transmission • Gilt Mhyo management

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