(Portland, OR)  --  A woman who was severely burned in a wildfire that killed her teenage son and mother remains hospitalized.  A spokesperson for Legacy Oregon Burn Center says Angela Mosso has been upgraded from critical condition to serious condition.  Mosso's 13-year-old son Wyatt Tofte and 71-year-old mother Peggy Mosso died while attempting to escape the Beachie Creek fire near Lyons on September 7th.  The blaze also killed 71-year-old Cathy Cook and her son, 41-year-old Travis Cook.