The World Health Organization is praising the Chinese government for taking immediate steps to halt the outbreak of infectious diseases in the aftermath of the huge earthquake that struck southwestern Sichuan province in May.  At the same time, the international health body warns of a growing demand for mental health care.  Stephanie Ho has more on the story from Beijing.

The World Health Organization's China representative Hans Troedsson recently visited the quake disaster area and praised the Chinese government for taking steps to prevent major outbreaks of infectious diseases.

"One of the reasons for that is clearly that at a very early stage, the affected population was provided with safe water, electricity, shelter and sanitation facilities, which we know are the main routes for transmission," he said.

At the same time, he says the Chinese Ministry of Health has asked the WHO to provide specific support for dealing with mental health.

"What we know is people who have gone through something like this will have some kind of need of psycho-social support," said Troedsson.

He says most of the time, the solutions are relatively simple and involve a person returning to as much of a normal life as possible.  At the same time, he says it is usually the case that up to 10 percent of the affected population will need professional mental health services.

Meanwhile, the WHO also is in the process of consulting with the Chinese government on rebuilding hospitals to withstand future natural disasters.

WHO engineering consultant Tony Gibbs said there are ways to make medical buildings structurally safer, and only add less than five percent to the cost of construction.

"None of these things can be introduced after the start of design," he said.  "You have to make a policy decision at the beginning of the design, before, at the first thinking of the design, that this is what we're going to do."

WHO experts who recently visited the quake zone, are preparing to present their suggestions to the Chinese government.

WHO public health expert Angela Merianos said she was most struck by how Chinese health authorities coped with not being able to rely on their Internet-based epidemic tracking system.

"Because the communications infrastructure was damaged after the earthquake, they set up - very, very quickly - quite an innovative new approach that involved reporting using mobile phones,"  said Merianos.

She says this mobile phone reporting system is the reason Chinese authorities are confident they did not miss any significant outbreaks.