Professor in Medicine researching transmission of emerging infectious diseases and impact of unsafe water on health in low income countries

Joined April 2010
78 Photos and videos
11 Dec 2023
Whooping cough notifications are up on last year but still well below pre-covid levels. Pre-covid infections were higher than the prior decade. This is my article in the Conversation theconversation.com/whooping…
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20 Nov 2023
Our latest peer-reviewed paper, this one reviewing the evidence on air treatment and respiratory illness sciencedirect.com/science/ar…

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12 Aug 2023
"The occurrence of Legionella spp. in high numbers in drinking water supplies is preventable through implementation of basic water quality management measures" WHO Guide to Ship Sanitation. So a well known risk that should have been prevented. who.int/publications/i/item/…

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13 Apr 2023
Do #doctorstrike cause an increase in #deaths ? Probably not, at least in the short term, and may even lead to fewer deaths according to this review from 2008 europepmc.org/article/MED/18…

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2 Feb 2023
I remember reading this paper almost 20 years ago and it shows why we need to be cautious about even usually short infection tranmsission chains in mammals as with avian flu nature.com/articles/nature02…
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6 Jan 2023
Last week of 2022 Omicron XBB.1.5 estimated at 40.5% of infections in U.S but this estimate has been revised down to just 18.3%. Still growing but a lot less rapidly than originally thought cnb.cx/3GLmvEr
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10 Dec 2022
People who post that “we know N95 masks are better than surgical masks” either do not understand the science or don’t want the evidence to undermine their beliefs. Let me explain. Firstly, how do we judge evidence in public health?
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10 Dec 2022
The recent RCT is not perfect but is, so far, the best quality study on covid and mask type (randomised design and objective outcome). Despite the ill-informed kick back from many, its conclusions are consistent with balance of earlier evidence.
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10 Dec 2022
For me people should wear whatever they prefer. But N95 masks may not fit well in women or older people (fit testing). In people with some pre-existing lung disease can make breathing more difficult. So to advise them for general population when no obvious advantage is harmful.
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