The country's vaccination campaign faces a battle against vaccine scepticism that predates the pandemic
Paralysed rodents that received the treatment started walking after two to three weeks
Microscopic organisms living in our intestines may influence the severity of Covid-19 and the body's immune response to it
More than 71,000 people in Britain have died within 28 days of a positive test for the disease
Strain is said to be up to 70% more transmissible than the previously dominant strain in UK