04-10-2015 California, migrant farmworkers loading plastic drip irrigation hoses from a strawberry field onto a truck. © David Bacon

04-10-2015 California, migrant farmworkers cleaning plastic drip irrigation hoses in a strawberry field © David Bacon

04-10-2015 California, migrant farmworkers cleaning plastic drip irrigation hoses in a strawberry field © David Bacon

04-10-2015 California, migrant farmworkers cleaning plastic drip irrigation hoses in a strawberry field © David Bacon

07-11-2012 A 6 week old baby boy recovers from an operation for an Inguinal hernia, Bristol Children's hospital, Bristol. © Paul Box

07-11-2012 A 6 week old baby boy recovers from an operation for an Inguinal hernia, Bristol Children's hospital, Bristol. © Paul Box

07-11-2012 A 6 week old baby boy recovers from an operation for an Inguinal hernia, Bristol Children's hospital, Bristol. © Paul Box

07-11-2012 A 6 week old baby boy recovers from an operation for an Inguinal hernia, Bristol Children's hospital, Bristol. © Paul Box

27-04-2010 Workers wearing fire resistant clothing burning the marsh at Metro Beach Metropark on the shoreline of Lake St. Clair. The controlled burn is to eliminate an invasive grass. Their aim is to restore na... © Jim West

19-01-2010 Medecins Sans Frontieres field hospital. Port-au-Prince, Haiti earthquake © Jess Hurd

18-01-2010 Tamwena, who in Senegalese volunteers for the International Medical Corp at a makeshift hospital. Haiti earthquake. Port-au-Prince. © Jess Hurd

18-01-2010 A patient on a stretcher is rushed past American troops at a hospital to guard Bill Clinton. Haiti earthquake. © Jess Hurd

22-10-2008 Health Minister Phil Hope MP meets a patient as he opens St Helens Hospital, Merseyside, the 100th hospital scheme built under the 2000 NHS Plan. © Paul Herrmann

22-10-2008 Staff Nurse Karen Pocock treats patient Rita McGrady with Herceptin for breast cancer at St Helens Hospital, Merseyside © Paul Herrmann

22-10-2008 Staff Nurse Karen Pocock treats patient Rita McGrady with Herceptin for breast cancer at St Helens Hospital, Merseyside © Paul Herrmann

20-02-2008 A mother and a newborn after a caesarean section, at South Warwickshire General Hospital. © Paul Box

20-02-2008 A mother and her newborn in a postnatal ward. At South Warwickshire General Hospital. © Paul Box

20-02-2008 Postnatal ward, at South Warwickshire General Hospital. © Paul Box

13-03-2005 Teenager in hospital. Royal Gwent Hospital, Newport © Justin Tallis

20-01-2005 Bath Hospital , The Oncology out patients. © Paul Box

01-07-2004 The mother of a newborn baby in hospital. © Paul Box

01-07-2004 The mother of a new born baby in hospital. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. Student nurse. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. Student nurse. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. Student nurse. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. © Paul Box

02-06-2004 Southmead Hospital neonatal care ward. Intensive care baby unit. Student nurse. © Paul Box

18-09-1999 Doctor injecting medicine into the drip of a patient in the intesive care unit. He is being assisted by a nurse. © Paul Carter

18-09-1999 Intensive care unit Nurse putting medicine into a patient's drip using a syringe. © Paul Carter

13-01-1999 Staff nurse with patient in Cardiology Coronary care unit. Hospital Birmingham © John Harris

13-01-1999 Staff nurse with patient in Cardiology Coronary care unit. Hospital Birmingham © John Harris

13-01-1999 Staff nurse taking blood pressure of a patient in Cardiology Coronary care unit. Hospital Birmingham © John Harris

13-01-1999 Staff nurse taking blood pressure of a patient in Cardiology Coronary care unit. Hospital Birmingham © John Harris

13-01-1999 Health Care Assistant Auxiliary Nurse helping patient to drink in geriatric care unit. Hospital Birmingham © John Harris

09-01-1995 UK Volunteers working on VSO projects in Zimbabwe. © Duncan Phillips

01-01-1984 Female operating department assistant (ODA) checking drip in an operating theatre. © Paul Carter

01-01-1984 Operating department assistant (ODA) checking drip in an operating theatre. © Paul Carter