Aedes aegypti is a highly specialized mosquito species feeding predominantly on humans and breeding in artificial water holding containers in urban areas, and currently restricted to subtropical and tropical areas. Williams et al. focus on the reasons why Ae. aegypti once occurred in locations where the mosquito does not occur anymore in Australia, the more temperate drier parts of the country.

In this letter the authors describe being able to identified a sustained community transmission of oseltamivir-resistant influenza A(H1N1)pdm09 viruses in Australia

Within a matter of weeks, three cases of gonorrhoea that are resistant to the recommended first line antibiotic treatment have been detected in Europe and Australia. These are the first global reports of Neisseria gonorrhoeae with high-level resistance to azithromycin and ceftriaxone resistance that also show resistance to several other vital antibiotics. At a time with limited alternatives to the current dual therapy, lack of a vaccine and insufficient surveillance capacity in some regions, these cases highlight the growing threat of drug-resistance – which could lead to untreatable gonorrhoea.