1. A COMPOSITION USEFUL AS A BACTERICIDE OR FUNGICIDE, SAID COMPOSITION COMPRISING A CARRIER AND A BACTERICIDALLY OR FUNGICIDALLY EFFECTIVE AMOUNT OF IODINE OR BROMINE FULLY REACTED AT BETWEEN ABOUT 30* C. TO ABOUT 80* C. WITH 1,3,5-TRI(B-HYDROXY) ETHYLHEXAHYDRO-S-TRIAZINE TO FORM A REACTION PRODUCT HAVING THE FORMULA