The present article describes for the first time a clinical outbreak of a p
olyomavirus infection in shamas (Copsychus malabaricus). Three out of four
shamas became ill and died within 14 days after introduction in a passerine
aviary. Other birds in the aviary remained clinically healthy. The diagnos
is of polyomavirus infection was made by electron microscopic examination o
f the liver of a bird that died.