Source: World Health Organization Map Production: Public Health Information and Geographic Information System (GIS). (Map A) reproduced from Impact on health care services, Status as of Week 41, 05 Oct-11 Oct 2009, available from http://gamapserver.who.int/mapLibrary/Files/Maps/Global_Impact_week41_20091105.png with permission from the Word Health Association and (Map B) reproduced from Impact on health care services, Status as of Week 51, 14 Dec-20 Dec 2009, available from http://gamapserver.who.int/mapLibrary/Files/Maps/Global_Impact_week51_20100114.png with permission from the Word Health Association.