<Table> Yogurt <Tr> <Td_colspan="2"> A bowl of yogurt </Td> </Tr> <Tr> <Th> Type </Th> <Td> Dairy product </Td> </Tr> <Tr> <Th> Region or state </Th> <Td> Eurasia </Td> </Tr> <Tr> <Th> Serving temperature </Th> <Td> Chilled </Td> </Tr> <Tr> <Th> Main ingredients </Th> <Td> Milk, bacteria </Td> </Tr> <Tr> <Td_colspan="2"> Cookbook: Yogurt Media: Yogurt </Td> </Tr> </Table> <Tr> <Td_colspan="2"> A bowl of yogurt </Td> </Tr> <Tr> <Th> Type </Th> <Td> Dairy product </Td> </Tr>

Where does live bacteria in yogurts come from