Bacteria have tiny channels in their walls which operate like the valve on a pressure cooker - they open to release material when the pressure in a bacterial cell gets too great. If the channel didn't open to relieve pressure the bacteria would explode and die, so this is a target for drug development.
An international aid agency has confirmed some cases of cholera in Myanmar's cyclone-hit Irawaddy delta but the number is line with normal levels in previous years.
The death toll in China's outbreak of hand-foot-mouth disease has risen to 42 children, with the capital Beijing reporting its first case on Wednesday.
A report from Sun 11 May 2008 shows that 183 children from the capital city Ulaanbataar and provincess have been infected and have been admitted to hospitals for treatment.