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Queen Mary University of London
In those who have not previously been infected and have so far only received one dose of vaccine the immune response to variants of concern may be insufficient.
The findings, published today in the journal Science and led by researchers at Queen Mary University of London, Imperial College London and University College London, looked at immune responses in UK healthcare workers at Barts and Royal Free hospitals following their first dose of the Pfizer/BioNTech vaccine.
They found that people who had previously had mild or asymptomatic infection had significantly enhanced protection against the Kent and South Africa variants, after a single dose of the mRNA vaccine. In those without prior COVID-19, the immune response was less strong after a first dose, potentially leaving them at risk from variants.
Date Time
World’s first fibre-optic ultrasonic imaging probe for future nanoscale disease diagnostics
Scientists at the University of Nottingham have developed an ultrasonic imaging system, which can be deployed on the tip of a hair-thin optical fibre, and will be insertable into the human body to visualise cell abnormalities in 3D.
The new technology produces microscopic and nanoscopic resolution images that will one day help clinicians to examine cells inhabiting hard-to-reach parts of the body, such as the gastrointestinal tract, and offer more effective diagnoses for diseases ranging from gastric cancer to bacterial meningitis.
The high level of performance the technology delivers is currently only possible in state-of-the-art research labs with large, scientific instruments – whereas this compact system has the potential to bring it into clinical settings to improve patient care.
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