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…
Our latest article for @ConversationUK discussing our review of the evidence that air treatment can or cannot reduce risk of respiratory infections
theconversation.com/no-compe…
"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/…
My article about the recent "pausing" of the @ONS covid survey which has published its final COVID infection survey and why it's been such a valuable resource theconversation.com/the-ons-… via @ConversationUK
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…
This review shows why maintaining covid supression (delays infection) after vaccination leads to more severe disease (hospitalisation and death - Figure 3) as as seen in China thelancet.com/journals/lanin…
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
My latest commissioned piece for the Conversation. China's COVID situation is dire – but it shouldn't pose a big risk to other countries theconversation.com/chinas-c… via @ConversationUK
A repeat of the CDC study on mask mandates in schools and covid using a rather bigger dataset than previously. After the first few weeks no real difference in paediatric case rates journalofinfection.com/artic…
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?
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.
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.