Scientists say a 'universal vaccine' which is effective against all Covid variants could be available by the end of the year.
Researchers are developing jabs which target the core of the virus, rather than the spike protein - and believe it could end the need to "tweak" existing doses.
The new vaccine is being developed at the University of Nottingham, The Telegraph reports. Jabs currently approved target the spike protein, but are likely to become less effective as Covid mutates, meaning people will likely require 'top up' jabs in the future.
UK pharmaceutical company Scancell is among the firms researching universal vaccines. Trials using mice have been encouraging, and human trials are expected in the second half of this year, it is