coronavirus outbreak linked to a seafood market in Thailand surpassed 1,000 cases on Tuesday, as authorities weighed whether to introduce a wider lockdown.Thailand has been on tenterhooks since Thursday following the positive virus test of a 67-year-old prawn seller from Mahachai market, Samut Sakhon province, about 40 minutes southwest of Bangkok.As of early Tuesday morning, there were 1,063 confirmed positive cases out of 6,156 tested -- a major outbreak for a country which previously had 4,300 infections.The majority of the new cases are workers from Myanmar, who toil on shrimp boats and in processing factories linked to the multi-billion-dollar Thai seafood industry.Migrant Workers Rights Network coordinator Suthasinee Bik said Myanmar.