Author: Clare

 

COVID-19: Looking at different ways in which aerosol research can support the fight against COVID-19

As Director of the EPSRC Centre for Doctoral Training in Aerosol Science and the Bristol Aerosol Research Centre, Professor Jonathan Reid’s approach to tackling COVID-19 is, naturally, focused on aerosols. ‘Aerosols’ is a term that is used to refer to a collection of particles that are airborne and with sizes typically smaller than the diameter of a human hair. When we speak, breathe, cough or even sing, we generate hundreds of these particles that someone else could breathe in, transmitting the virus responsible for COVID-19.

A key piece of work from Professor Reid has shown that there is significantly less risk of COVID-19 transmission from anaesthesia procedures than was previously thought. This is an important finding at a time when many operations and NHS procedures have been postponed or cancelled, causing problems for patients in the UK.

Since the outset of the COVID-19 pandemic, there has been much debate about the danger to hospital staff from anaesthetic procedures. Concerns include that inserting a tube in the patient’s airway (intubation) before surgery or removing it at the end (extubation) may produce a fine mist of small aerosol particles and spread the COVID-19 virus to nearby staff.

(more…)

COVID-19: Immune correlates of hyperinflammation and protective immunity in COVID-19

As we grapple with the nightmare scenario of a global pandemic, scientists around the world, including at Bristol, are diving into research around as many aspects of the COVID-19 virus as possible. One of the key findings to date is that in serious cases the body’s immune system goes into ‘overdrive’. Evidence accumulated so far suggests that the life-threatening COVID-19 complications are related to immune dysregulation, arising because of viral infection in the form of a hyperinflammatory syndrome accompanied by increased plasma levels of pro-inflammatory cytokines.(1-2)

Immunologist Dr Laura Rivino is conducting a pilot study that should provide us with a clearer understanding of the immune response underlying both the immunopathology and immune protection in patients with COVID-19. Her team’s hypothesis is that it would be beneficial to use a combination of strategies where the anti-inflammatory response can be blocked while simultaneously boosting the anti-viral immune response, with an expectation of ensuring viral clearance and establishment of immunological memory.

(more…)

COVID-19: Black lives in lockdown – the pandemic experiences of people with Black, Asian and minority ethnicities living in the South West

For many people, the reports that COVID-19 was disproportionately affecting those in Black, Asian and minority ethnic communities was news to them. For Dr Saffron Karlsen, however, it was not. As Associate Professor in Sociology and a specialist in inequalities in health research, Dr Karlsen has spent over 20 years looking at how structural and societal  inequalities hamper health and healthcare for those in ethnic minority groups. (more…)