There is little doubt now that Middle East respiratory syndrome (MERS) disease outbreaks are triggered by sporadic zoonotic transmission of the MERS coronavirus (MERS-CoV) from an infected camel to a susceptible human.
Little doubt to anyone who has followed the story of MERS at all, anyway.
But that's just the tip of the iceberg.
The majority of human cases that have contributed to those steep rises in the cumulative MERS-CoV detection graph below are there because humans have infected other humans while in or associated with a healthcare facility. A telling picture when you consider that MERS-CoV is not a great transmitter. We've done much to make something from what should have been nothing.
Can we vaccinate against lapses in infection prevention and control?