Covid-19

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    Covid-19: An introduction and summary

    (March-May 2020)

    • Start with my A timeline of Covid-19.
    • How deadly is Covid-19?
      See this article
    • How long will it take to develop a vaccine?
      See this article
    • Is there any cure/treatment?.
      See this article
    • Are young people immune?
      See this article
    • What tests are available?
      See this article
    • How did it spread in so many places?
      See this article
    • Can it mutate into something even more dangerous?
      See this article
    • How did east Asia contain it?
      See this article
    • Are face masks useful?
      See this article
    • Was covid-19 made in a US lab? in a Chinese lab?
      See this article
    • If you catch it and survive it, are you then immune to it?.
      It is too early to know the answer. With most viruses, that is indeed the case. At least for a few months, you are immune. Some people catch the flu every year so obviously that immunity is not a lifelong immunity (if nothing else, because the virus mutates rapidly). In the case of someone who fully recovered from covid-19, it is not clear how long the immunity lasts. Already in January, China reported cases of people getting reinfected. By mid-April, South Korea had counted 116 people who tested positive again after having recovered from covid-19. This could mean several things and we don't know which one is true: the patients were infected again (this would be the worst-case scenario), the virus "reactivated" itself in these patients, or the tests were faulty.
    • How long does the virus survive? Can it be spread by touching objects?
      According to a study by the National Institutes of Health , the virus can remain suspended in the air for up to three hours, and can last four hours on copper, 24 hours on cardboard and two to three days on plastic and stainless steel. But similar coronaviruses can last much longer on surfaces. If covid-19 resembles the SARS and MERS ones, it can last on surfaces for even nine days (Journal of Hospitalization). By comparison, flu viruses normally don't last longer than 48 hours on most surfaces. The good news is the typical disinfectants (like bleach) can kill coronaviruses within a minute. While scientific evidence is still missing, the chances that one touches an object that got a virus from someone who is infected are very low: the infected person needs to sneeze or cough or spit on that object just in the place where you will put your hand. The most likely places would be crowded public transportation that is not frequently sanitized. I would be more concerned about animals than objects: the fur of your dog is an excellent place for a virus to survive a long time.
    • Will the virus die out in the summer?
      So far we have zero evidence that this virus doesn't like warm weather. The two worst-hit countries in Europe are Italy and Spain, which are also among the warmest. Hot countries like Ecuador, Peru, Indonesia and Brazil seem to be highly infected although we don't really know their death rates.
    • How will it end?
      See this article

    See also:
    Data on Covid-19 and selected sources,
    Covid-19: How it may change the World,
    The Clown & the Virus,
    The Clown & the Virus - Part 2,
    Trump's Virus,
    Sinophobia & Covid-19,
    Sinophobia & Covid-19 in US Media,
    TM, ®, Copyright © 2020 Piero Scaruffi All rights reserved.
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Email | Back to History | Back to the world news | Home | Support this website

TM, ®, Copyright © 2020 Piero Scaruffi All rights reserved.