The family is an 87-year-old man who died from bird flu on 4 March, along with one of his sons who died of pneumonia who tested negative for the virus.
Hong Kong's South China Morning Post says there is still hope in battling the deadly bird flu as a 67-year-old man in Hangzhou and a four-year-old boy in Shanghai are both recovering from the virus.
An NHS spokesman said the two new swine flu cases in London - a 23-year-old man from Islington and a 29-year-old man from Westminster - were also being successfully treated at home.
China suspended flights into and out of Mexico after a 25-year-old Mexican man who arrived in Shanghai from Mexico City on April 30 became China's first confirmed case of swine flu.