Poultry Vaccines Market is forecasted to value over USD 20 billion by 2028 end and register a CAGR of 7.5% from the forecast period 2021-2028. In the prevention and control of poultry diseases, poultry vaccines are a key component. When a bird is vaccinated against a particular disease, its immune system produces antibodies against the invading organism. Many vaccines' potency is influenced by the handling and administration procedures and, therefore, by the immunity level developed by the bird.