<Table> <Tr> <Th> Drying method </Th> <Th> Effect on bacterial count </Th> </Tr> <Tr> <Td> Paper towels and roll </Td> <Td> Decrease of 24% </Td> </Tr> <Tr> <Td> Hot - air drier </Td> <Td> Increase of 117% </Td> </Tr> </Table> <Tr> <Th> Drying method </Th> <Th> Effect on bacterial count </Th> </Tr> <Tr> <Td> Paper towels and roll </Td> <Td> Decrease of 24% </Td> </Tr> <Tr> <Td> Hot - air drier </Td> <Td> Increase of 117% </Td> </Tr>

What are some of the techniques that scientists use to try to control infectious diseases