The authors would like to apologise for a typographical error in the abstract of the above mentioned article. In the results section of the abstract on the first page of the article, the first odds ratio that refers to 'aged care facilities' should be (OR 5.44; 95% CI 4.43-6.67) and the second odds ratio that refers to health service facilities should be (OR 4.56; 95%CI 4.06-5.13).