I'm not clear (or am confused) about the relationship.
It seems to me that the "last resort antibiotics" refer to the most powerful antibiotics (eg. vancomycin) that we humans now have had, while "Less than a handful of antibiotics" are still in reaserch or lab trial or clinic trial.
Am I on the right track?
Context:
Warning over threat posed by new superbugs resistant to ‘last resort’ antibioticsBy Daily Mail Reporter
Last updated at 10:08 AM on 7th April 2011
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Scientists have issued a stark warning over the rise of new superbugs resistant to the most powerful antibiotics.
Less than a handful of antibiotics are currently in the pipeline to combat antibiotic resistant bacteria with the worldwide spread of genes resistant to last resort antibiotics a 'nightmare scenario', the World Health Organisation (WHO) has said.
The body said abuse of antibiotics for humans and in the food chain was fostering the emergence of antibiotic resistance and threatening to take the world to an era before the discovery of penicillin in the 1920s.
Read more:
http://www.dailymail.co.uk/health/article-1374293/Warning-new-superbugs-resistant-resort-antibiotics.html