Virologist at King's College London
Spain recommends that people who have been infected with the coronavirus receive the third dose four weeks later. Experts assess the decision from an immunological point of view.
The new B.1.1.529 variant, dubbed Omicron, has spread across the globe, with new countries announcing its detection with each passing day. While questions such as whether it is more transmissible are being investigated, the biggest question surrounds its relationship with vaccines - will they cease to be effective, and will this variant escape our immune systems? Several experts answer.
Johnson & Johnson has just released preliminary data from its two-dose trial in a press release. It shows that the second dose increases the antibody response and also confirms the duration of protection among those who received one dose.