'Call the Midwife' Series 4 : Episode 5 Recap

Previously on Call the Midwife: Last week's recap is right this way.

This has been quite the series for infestations and contagious disease outbreaks. First, London experienced a rat invasion. Next came an epidemic of dysentery. Oh and don’t forget the syphilis-ridden brothel. Now our medical professionals must contend with a very nasty disease indeed, diphtheria.

More on the pestilence later because I know we all want to celebrate the long-awaited return of Nurse Cynthia Miller, now known as Sister Mary Cynthia (Bryony Hannah). She’s left the mother house in Chichester with some encouraging words from Sister Evangelina and a bit of anxiety about coming back to her former home in an entirely new capacity.