Molecular Epidemiology of Fowl Adenovirus (FAdV) from Inclusion Body Hepatitis (IBH) Incidences from Indian Broilers Revealed the Prevalence of Serotypes of FAdV-D and E

Background: Inclusion body hepatitis (IBH) caused by Fowl adeno virus (FAdV), is a re-emerging threat to broilers causing considerable economic loss poultry industry worldwide. Methods: The present study investigated the IBH outbreaks in commercial broiler flocks from different regions of India between 2019- and 2021 identified serotypes associated with it molecular characterization hexon gene FAdV strains. Result: 42 out 98 affected tested positive PCR. Phylogenetic analysis grouped these strains into three serotypes; 25 (67.56%) were clustered FAdV-11 serotype, 11 (29.72%) FAdV-8b serotype one strain FAdV-8a (2.70%). Three FAdV-11, 8a 8b species D E are currently circulating Indian broilers. indicates need for continuous surveillance provides useful information devising vaccination strategies effective control chickens.