If in this first phase the vaccine would work, it would be tested with a more vulnerable population, and if everything went well, it could be ready by this fall, according to the news agencies the researchers have told.

The UK is just one of the laboratories looking for the COVID-19 vaccine, as researchers around the world are looking for the formula against the disease. In China, for example, the vaccine they have developed enters the second phase of tests already being carried out on humans: They've come to test it with people over 80.

These are rhythms that have never been seen before: to find the vaccine of a disease, in a normal situation, you have to work five or ten years – at best, twelve or eighteen months.

But even though the laboratories are sending messages to hope, the International Institute of Vaccines has wanted to calm the mood a little. Jerome Kim, CEO of that body, has also spoken to the media about other options: With this coronavirus, it can be the same as with AIDS or tuberculosis, and it may not be possible to destroy them completely through a vaccine. The high rate of people who have formed after the disease progressed gives hope of finding immunity, according to Kim.