Governments must provide financial support to find quickly a vaccine for severe acute respiratory syndrome (SARS), exhorts the World Health Organization (WHO). Marie-Paule Kieny, head of the organization's Initiative for Vaccine Research, notes that research is made more important by the disease's quick mutations that threaten to make any treatment useless. She is afraid that pharmaceutical companies will pay less attention to research if no market exists for a vaccine. Mark Salter, head of WHO's global alert system, predicts that new ideas for combating SARS will sprout shortly.