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At the beginning of 2021, many countries have approved more than one COVID-19 vaccine. What are the differences between the available options? Here we compare the three most-discussed COVID-19 vaccines.

Approval of several vaccines against COVID-19 developed in under a year elicits both caution and optimism. Do they work, and more importantly - are they safe? Let us look at the first vaccine approved in western countries - BNT162b2 developed by Pfizer/BioNTech.

The mass culling of farmed minks due to the spread of the novel coronavirus came as a shock to most. Was it a necessary measure or a better-safe-than-sorry precaution? Should we be wary of not only other people but animals as well?

It is crucial to do what we can to stop the spread of COVID-19. With similar symptoms to other respiratory diseases and many asymptomatic people, we need reliable ways to detect the virus behind the pandemic. What are our options?

Artificial intelligence and machine learning in particular have revolutionized our way of life. How is it applied to the management of the ongoing COVID-19 pandemic?

Respiratory illnesses are often limited during warm, sunny weather, and it seems that a cold environment could be an additional risk factor for SARS-CoV-2 infection as well. Could it be related to the levels of sun-requiring vitamin D?

An effective vaccine against COVID-19 is likely on its way. What about the plan for its distribution?

What is the research of COVID-19 treatment like after all the months of the pandemic?

The announcement of the first registered COVID-19 vaccine in such a short time has elicited a mixed response. Is it the solution to the ongoing crisis, or too good to be true?