PORT-AU-PRINCE, Oct 2 (Reuters) - Haiti on Sunday said at least seven people have died of cholera in a surprise return of the disease that comes as the nation is paralyzed by a gang blockade that has triggered shortages of fuel and clean drinking water."According to the information we have, the number of deaths is about 7 to 8," said Health Ministry General Director Laure Adrien during a press conference, adding that officials were struggling to get information from hospitals.Many hospitals have shut down or scaled back operations for lack of fuel to power generators.Caribbean Bottling Company, a key supplier of bottled water, said on Sunday that it could no longer continue producing and distributing water because it had run out of diesel fuel, which is critical to its supply chain.Troops from Nepal, where cholera is endemic, were in Haiti as part of a U.N. peacekeeping force established in 2004 after the overthrow of President Jean-Bertrand Aristide."