About eight years ago, 44-year-old Tilda Chihota was struck with tuberculosis which kept her bed-ridden for over six months at her rural home in Zimbabwe’s Mwenezi district, 144 kilometres southwest of Masvingo, the country’s oldest town.

While it’s anyone’s guess whether a final deal will be reached over Iran’s nuclear programme this year, a number of key international actors have forcefully weighed in on calls from within the U.S. congress to impose more sanctions on the Islamic Republic.