50% – 75% of cases of Covid-19 are asymptomatic

Re:50% – 75% of cases of Covid-19 are asymptomatic by Jedd on Tuesday March 17, 2020 @04:15AM (#22602802)

This doesn't add up either -- immunity per individual is expected to last 'only a few months', opening the door to multiple infections per year per person.

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Re:50% – 75% of cases of Covid-19 are asymptomatic by easytiger on Tuesday March 17, 2020 @04:23AM (#22602848)

> This doesn't add up either -- immunity per individual is expected to last 'only a few months',

There is no evidence either way. Even if it is transient it will be enough for it to die down

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Re:50% – 75% of cases of Covid-19 are asymptomatic by Jedd on Tuesday March 17, 2020 @04:30AM (#22602883)

There's some very strong indicators that immunity will be ephemeral.

It's possible the R naught will drop below the currently assessed 2.2 over time, but there's no evidence for that -- and if both these things stay as expected, it won't be transient enough to 'die down' naturally.

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Re:50% – 75% of cases of Covid-19 are asymptomatic by easytiger on Tuesday March 17, 2020 @04:36AM (#22602916)

Unfortunately until we get an antigen test, we will not know for sure. But there is no reason to believe at this point that it isn't anything other than a standard immune response.

It would extremely rare that it wasn't

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Re:50% – 75% of cases of Covid-19 are asymptomatic by bart_spoon on Tuesday March 17, 2020 @01:19PM (#22607334)

There's no indication how long the immunity is expected to last. It's just as likely that immunity, even if temporary, can last for a year or more, as is the case with the flu or some other viruses.

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Re:50% – 75% of cases of Covid-19 are asymptomatic by Jedd on Tuesday March 17, 2020 @07:03PM (#22611577)

On HN this morning -- news that someone in Japan is already on their second infection of this virus.

So there's our first data point.

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