There is not much doubt about the source of this case.
Xinhua report in full here
Macao confirms first case of human infection with streptococcus suis this year
MACAO, June 28 (Xinhua) -- Macao has confirmed one case of human infection with streptococcus suis, the first such case found in Macao so far this year...
... a 54-year-old Macao man, who has been operating a roasted meat shop and often handles pig materials, developed fever from last Monday (June 25), and was admitted into a local hospital....
...Streptococcus suis is a peanut-shaped, Gram-positive bacterium, and an important pathogen of pigs. It is also a zoonotic disease, capable of transmission to humans from pigs...
... Macao recorded one streptococcus infection in 2011, three in 2010 with one related death.