Drug-resistant gonorrhoea is on the rise. Scientists are trying to hold the line against the disease as they look for new ways to treat it.
People whose sickness is linked to certain buildings fear being labelled as mentally ill, while scientists seek evidence that their condition is real.
Understanding why suicide rates in Puerto Rico have risen by a third since Hurricane Maria could help us prepare for future natural disasters.
The rest of the world can learn from Puerto Rican communities rallying together to recover from a natural disaster fuelled by climate change.