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As clinicians and researchers, we followed the COVID-19 pandemic right from its start in 2020. During the first month, immediately after its appearance in China, we all considered the disease as we would seasonal influenza. We thought "they are making a mountain out of a molehill". We could not have been more wrong: the disease was not a molehill but a soaring peak.As soon as we realized the severity of the viral infection in March 2020, we immediately started looking for ways to treat it and possible preventive measures since we were aware that it would take longer to come up with a specific...

COVID-19 has mainly spread through Europe in two waves: W1 between January and August 2020, and W2 which is still underway and started in September 2020. W1 originated in China and spread throughout Europe from Cyprus and Switzerland.W2 originated mainly in the USA, Mexico, and Brazil, where the number of deaths during summer 2020 was very high, while Europe was at the end of W1.W2 was more severe than W1 for several reasons: the season (winter); the lack of a common European strategy against the virus; no suitable information on oral hygiene and sanitation; viral drifts; controversial...

The death rates after the start of the vaccination program are very different in the 47 countries representing Europe, although a very similar number of vaccine shots have been administered in the countries most affected by the pandemic. One exception to this is the UK, where the number of vaccinations is about three times higher. As in the rest of the world, a temporary decrease in the number of deaths in Europe was followed by an increase. However, the trends are different in each country, and a clear decrease is currently only taking place in ten European countries. Why do these...