I usually produce reports as PDF files – its great as it retains the exact formatting, including pagination and special fonts. Levels of security can also be embedded. However, I sometimes need to convert a PDF file to be used on a word processor like Microsoft Office.

Converting PDF files to Word and Excel


The National Academies Press has a free download “Reusability of Facemasks During an Influenza Pandemic: Facing the Flu (2006)“. Unfortunately they see a huge need for more research in the area, so the advice tends to be a bit of a guess.

Reusing flu facemasks


CBS News in Canada has a disturbinbg video of the use use of Canadian chrysotile asbestos in India. No effective respiratory protection was seen to be used in the dusty workplace where asbestos was spun.

“Canada’s Ugly Secret”



Swine flu in Austrailia in 2009 appears to heading for a worse winter than the US, but the approaches by the Australian public health authorities are confused.

Flu trends and over-reaction


Much could be learned about the spread of Swine Flu from the spread of the disease on the Pacific Dawn, which recently berthed in Sydney. For some reason the public health officials let passengers leave the ship and fly all over Australia. To me it would have been prudent to […]

Influenza, Cruise Ships and Air-conditioning


A recent paper MacIntyre, C. R., S. Cauchemez, et al. (2009). “Face Mask Use and Control of Respiratory Virus Transmission in Households.” Emerging Infectious Diseases 15(2): 233-241. is available from the CDC  as free download Unfortunately, despite the warning

Surgical masks vs P2 (N95) respirators #2



There is not yet any  direct data on the survivability of the Influenza A H1N1 swine flu virus on different surfaces, but there is data for the survival of the Influenza A virus on various surfaces. Weber and Stilianakis (2008) published some data (22°C, 50-60% RH):

Survival of Influenza A on surfaces


Even though the WHO has renamed Swine Flu “Influenza A H1N1“, I suspect the popular name will remain Swine Flu. The National Academies Press have a number of books that can be downloaded for free as PDF files (you need to sign in with your email address) that are useful, […]

Swine Flu books


I was called by the ABC National Radio program “AM” at 6:30 this morning to be interviewed about the use of face masks for protection against swine flu. The interview formed part of a story “Rush for surgical masks at Sydney airport” on the ABC website.

Swine flu and surgical masks



Its hard not not notice the wrong selection of face masks – occupational hygienists like to use the term respiratory protection equipment” or RPE. Journalists like to use the term face masks to cover anything from a surgical mask to a toxic dust respirator. The lady is the picture is […]

Swine Flu – more face masks