| hydropericardium syndrome: current state and future developments. | hydropericardium syndrome (hps) is a highly infectious disease caused by fowl adenovirus serotype 4 (fav-4) affecting poultry, especially broiler birds. the disease was initially reported from angara goth, pakistan, and then from india during 1994, in the poultry belt of jammu and kashmir, and thereafter, from almost all parts of the country, causing heavy economic losses to the poultry industry. the disease occurs predominantly in broilers of the age group of 3-5 weeks, characterized by sudden ... | 2013 | 23242777 |