The rise and demise of antibiotics
By Rietie Venter, University of South Australia
In the 1940s the well-known British vet James Herriot administered the brand-new antibiotic penicillin to a sick animal and the amazing, speedy recovery that followed was in his words “like witnessing a miracle”. Barely 70 years later, I got an infection in a caesarean wound and I was terrified that these miracle drugs would not work anymore.

Iris, the Greek Goddess messenger between humans on Earth and the Gods on Mount Olympus, has made an entry into human biology by providing inspiration for the name of a skeletal muscle-derived hormone. Irisin belongs to the class of 