Corner stone seminar 4: UNCOVERing COVID-19 Flashcards
Why was it hard to assemble the UNCOVER research group during lockdown?
- Uni shut down so needed permission to keep the labs open which took time
- Needed more lab space to accommodate social distancing
- Government was requisitioning lab equipment for testing
- needed to get funding
- ethical approval
- staff and approve clinical trials
How big was UNCOVER?
50-100 academics from across the university
What were the disciplines involved in UNCOVER?
- virology
- aerosol science - chemistry
- human and animal immunology
- molecular microbiology
- synthetic biochemistry
- clinical studies and trials
- population health sciences
- physics
- epidemiological modelling
What made COVID hard to study?
- The uni was told they couldn’t use aerosolised covid despite the importance
- found a category 3 lab in the vet school we were allowed to used
What did the aerosol COVID studies show?
how long the virus can survive in the air and its ability to infect the cells.
It lost viability quite fast.
How were SARS-Cov-2 antibodies detected?
- luciferase immunoprecipitation system - LIPS
- ELISA
Where did COVID antibody negative samples come from?
the biobank before covid
Mucosal antibody detection
- non-invasive sampling
- permits serial studies with high return rates
- mucosal responses are likely to impact viral transmission = good for a vaccine
Where will N-protein antibodies come from?
a natural COVID infection as all vaccine are spike proteins
What was the ADDomer?
- a candidate vaccine platform
- a virus like particle vaccine made of protein scaffold
- no DNA/RNA
- no need for cold storage
- easily scalable
- can be engineered to have multiple epitopes
What was good about the nasal ADDomer vaccine?
it had a really good IgA mucosal response
What was good about the discovery of the oleic acid binding pocket?
- Identify highly pathogenic strains
- binding of free fatty acids can prevent covid binding to ACE-2
- starting small scale human trials
ChAdOx vaccine in bristol
- bristol was the highest recruitment centre for the vaccine
- had 2 trial site: BRI, southmead
- done in lockdown so had to negotiate safe travel for staff and volunteers
- need to prevent healthy volunteers for bringing in the virus or contracting the virus from the hospital
- lab liaison
- Communication and recruitment
what was Valneva?
a whole virion inactivated adjuvant COVID19 vaccine
When is it not ethical to do a randomised control trial?
when there are lots of vaccines available to have a no vaccine control