Gajdusek 's father , Karol Gajdusek , was from Smrdáky , Kingdom of Hungary now in Slovakia and was an ethnic Slovak who was a butcher .
Gajdusek 's father , Karol Gajdusek , was from Büdöskö , Kingdom of Hungary , now Smrdáky , Slovakia . He was an ethnic Slovak who was a butcher .