Covid-19: is there a serial killer among us?
In a viral infection, both the host and the virus tend to have a reproductive advantage: the host develops defenses, the virus undergoes continuous changes. All viruses are subject to mutation because the mutation makes them different from the original version and therefore less identifiable and attackable by our immune system.
Natural selection favors viruses with low pathogenic power (i.e. those that do not kill the host by allowing themselves to live). Many viral infections are in fact asymptomatic.
It is likely that since the first appearance of Covid-19 there has been more than one mutation and perhaps there is a much more aggressive version in circulation than the others. This would explain why young and healthy people also die and not just the weakest people (elderly and with previous diseases).
It is possible that among the different versions in circulation there is a killer, a serial killer with high pathogenic power who hides among the other less aggressive versions. Perhaps the difference in the outcome of the infection does not depend only on the person’s state of health, but above all on the version of the virus that attacked the person itself.
It should be an uncommon version so as to be hardly and belatedly identified, efforts to identify Covid-19 should be focused on this version alone, letting the others take their course, causing minor or no damage.
It is very difficult to defeat this virus that is constantly changing, the identification of the killer strain and the focus on the defenses to be put in place to eliminate it would reduce the effort required and remove the problem in a faster time.
