NEW : Bush suggests how countries can help . He says lack of money will cause a calamity . Clinton said that money must be spent to `` make good things happen . The former president is attending the International AIDS Conference in Austria , Vienna . Reports from vaccine tests are the next two to three months away , he says .
NEW : Bush suggests how countries can help . He says lack of money will cause a calamity . The former president is attending the International AIDS Conference in Austria , Vienna . Reports from vaccine tests are the next two to three months away , he says .