EMERGING MARKETS-Brazil's real crosses 2.80 mark, weakest in 10 years

SAO PAULO, Feb 10 (Reuters) - The Brazilian real dropped to its weakest level since late 2004 on Tuesday on disappointing economic data from top trade partner China and concerns over the health of Latin America's largest economy. Other currencies in the region also weakened, while the MSCI Latin American stock index erased the previous session's gains. The real was trading near the 2.82 per dollar level in the early afternoon after flirting with, but not surpassing, 2.80 in the previ