STEPHANIE NEBEHAY THE World Health Organization, facing pressure from donors, said that an independent investigation into allegations of sexual abuse in the Democratic Republic of Congo against WHO aid workers should issue findings by the end of August. The Thomson Reuters Foundation reported last October that more than 50 women had accused aid workers from the WHO and leading charities of sexual exploitation and abuses during the Ebola outbreak. WHO Director-General Tedros Adhanom Ghebreyesus told its annual ministerial session on Friday that any abusive behaviour was "totally incompatible with WHO's mission" and he was aware that some states were frustrated…