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Are we able to detect all coronavirus variants?
Are we able to detect all coronavirus variants?
Viruses do not evolve with the purpose of being more or less infectious or dangerous: it is just natural selection at work. New random variants occur continuously and most of them are neutral or make the virus less infectious.
Do microbes control our mood?
Do microbes control our mood?
If aliens were to examine a human, they would think we were just slavish organisms designed to feed microbes and carry them around. Our bodies contain ten times more bacteria than cells , and there are an estimated 3.