"They dress inappropriately, they talk and curse loudly, they spit and litter, and they steal and overstay."
For one of the world's largest exporters of the grain, food security is not an issue and a switch is needed.
The men in schoolbooks are doctors, scientists and police officers while most of the women are depicted as housewives.
The patients are women from Nha Trang and Ho Chi Minh City. Their relatives and neighbors have been tested negative.
Scientists say the breakthrough will help the world know more about the history of Asia.
After nearly five decades, they finally get a simple wedding that they could never afford.