In ovo vaccines A wide range of vaccines against common poultry diseases is now available for in ovo administration globally – although availability varies from country to country. Recent developments from Pfizer Global Poultry include the first antigen-antibody complex vaccine (Bursaplex) for in ovo use against infectious bursal disease (IBD), and a live oocyst vaccine for coccidiosis (Inovocox EM1). … Continue reading  OVO vaccine is now available for in ovo administration Globally – although availability varies from country to country – Pfizer Global Poultry.