Co-Infection of Poultry with Pasteurella multocida and Chicken anemia virus across various regions of India

This study investigates the prevalence and geographic distribution of co-infection involving Pasteurella multocida (P.multocida) and Chicken anemia virus (CAV) in poultry populations across various regions of India. From August 2019 to May 2020, organ samples from poultry flocks suspected of Fowl cholera (FC) and CAV were collected. The study included ten samples representing instances of co-infection obtained from six Indian States: Andhra Pradesh, Haryana, Karnataka, Gujarat, Maharashtra and Telangana. The study used polymerase chain reaction (PCR) to determine the co-infections of P.multocida and CAV, mainly focusing on P.multocida-induced immunosuppression leading to subsequent CAV infection. Among the co-infection cases, two samples exhibited concurrent infections, one with Avian Leukosis Virus (ALV) and another with Mycoplasma gallisepticum (MG), along with P.multocida and CAV. Understanding the immunosuppressive mechanism is crucial for effective control measures and mitigation of economic losses in the poultry industry.