A woman was seriously injured this afternoon in a fire at a building on McDonald Avenue in Gravesend, writes DNAinfo [http://www.dnainfo.com/20120223/bay-ridge-bensonhurst/woman-seriously-injured-mcdonald-avenue-fire-brooklyn] . The blaze began just before 1 p.m. on the second floor of 2500 McDonald Avenue, near Avenue X. Fire sources said that