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Medicine Science

Second Waves Are Plaguing Asia's Virus Recovery (bloomberg.com) 126

An elderly woman with no travel history. An unexpected flare-up in a nightclub. A swelling cluster in towns near international borders with no discernible source. After containing their outbreaks through measures from strict lockdowns to rapid testing regimes, the Asian economies that have seen some of the most success quelling the coronavirus -- Hong Kong, South Korea and China -- are now facing resurgences that underscore how it may be nearly impossible to eradicate it. From a report: It's a painful reminder that as countries open up again and people resume normal life, untraceable flare-ups are likely -- even after an extended lull in cases. Scientists have warned that the disease may never go away, because it lurks in some people without causing any outward signs of sickness. "Given the asymptomatic population, these cases are going to emerge from unexpected sources," said Nicholas Thomas, an associate professor in public health at the City University of Hong Kong. "It is inevitable that the restarting of societies is going to lead to more cases emerging." In Hong Kong, a 66-year-old patient with no recent travel history ended the city's much-envied 23-day streak of zero local cases this week. Some of her family members have now been confirmed to be infected as well, and fears are growing that the woman may have seeded more infections as she moved around Hong Kong's dense city streets before being detected.
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Second Waves Are Plaguing Asia's Virus Recovery

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  • by Kunedog ( 1033226 ) on Friday May 15, 2020 @05:29PM (#60065314)
    I think Thunderfoot estimated that without a vaccine or behaving like shut-ins forever, it's always two months away from infecting a whole country.
    • Re: (Score:3, Informative)

      by Maxo-Texas ( 864189 )

      I think if we social distance and merely give up large concerts/conventions/religious services and limit gatherings to 250 people or less that it will grow much less explosively.

      With nothing- the Re looks to be about 6 with some cases where one persion infects 30+ others quickly.

      With social distancing, masks, and no large gatherings, the Re still looks over 1 rather than under 1 but it doesn't spread like wildfire.

      The fact is 60% or more will get it until we have a vaccine. And if the Re is 6 then about 5

      • by hey! ( 33014 ) on Friday May 15, 2020 @05:58PM (#60065430) Homepage Journal

        The herd immunity threshold drops if you can get the basic reproduction number down -- e.g. by social distancing. The theoretical formula is 1-1/R0, so a 60% threshold implies an R0 of 2.5. If you can get R0 to 1.5 then the threshold becomes 33%.

        So things, while grim, aren't quite *that* grim. We do have some control over this depending on our behavior, although we have to expect what these Asian countries are seeing -- spurts of transmission.

        One of the things I've noticed is that the states that have the strongest and most sustained reductions in cases are the states where the problem got bad earlier. This, even though most states shut down almost at the same time -- on or around March 22. You'd expect everyone's cases to go down in parallel, but in fact states that didn't have much transmission before shut down continue to have consistent rises in the rate of new cases.

        For some reason states which were hard hit early are having a lot more success at reducing the basic transmission number through social distancing than state where the problem was less severe.

        • by HiThere ( 15173 )

          Perhaps the states that got hit harder are taking prevention measures more seriously.

          • Perhaps the states that got hit harder are taking prevention measures more seriously.

            This may be what is happening. Those hit early were mostly blue coastal states with big cities and lots of international connections: Seattle, SF, NYC, Boston.

            Blue states are taking the lockdown more seriously, perhaps because the residents know people who were infected in the first wave, or perhaps because of their stronger inherent trust in government.

            Of the top ten first-wave states, nine were blue. Louisiana, at #8, was the top red state.

            • Thatâ(TM)s a silly correlation to bring up to reenforce whatever biases you have. An equally ridiculous argument in the other direction could be made (the virus hit blue states harder and killed their population in larger numbers because of their trust in government).
          • I suspect it is more a matter of simple minded people having more influence in the red states. More anti-intellectualism, more defiance towards experts, physicians, epidemiologists. I live in Texas. My Lt Governor is a retard who said so stupid things even my parents in Europe have heard of him.

        • by dirk ( 87083 )

          I believe the difference is how seriously people take the threat. In those states that were hit hard right out of the gate, people are more likely to know someone who got the disease or possibly even were hospitalized or died. This makes them take the threat more seriously. In those states without much transmission, people are more likely to believe the garbage about it being a hoax or being overblown because they don't know anyone personally who was affected by it. Unfortunately, many people are selfish an

        • The herd immunity threshold drops if you can get the basic reproduction number down

          I read that, and immediately jumped to "jeez this guy's suggesting we stop having kids?"...

        • 10 States with the highest Population Density:
          New Jersey
          Rhode Island
          Massachusetts
          Connecticut
          Maryland
          Delaware
          New York
          Florida
          Pennsylvania
          Ohio

          10 States with the highest Coronavirus deaths per capita:
          New York
          New Jersey
          Connecticut
          Massachusetts
          Louisiana
          Michigan
          Rhode Island
          Pennsylvania
          Maryland
          Illinois

          7 of the 10 states with highest Coronavirus deaths per capita are on the list of top 10 states with highest population density. These states are all handling lockdowns differently, and perhaps that makes a small diff

          • by hey! ( 33014 )

            I have no objection to your analysis, with the proviso you add "for now". Without restriction, the virus will spread until it reaches the herd immunity threshold in a particular population, and the more unrestricted that spread is, the higher that threshold.

            Sometimes you don't have any good choices on the table.

        • Fun fact I stumbled across...
          Where Si = Sinfinity... (stupid slashdot doesn't support modern font tech).

          "In the SIR model, p=1-1/R0 is the equation for the fraction of the population that has to be infected to reach herd immunity. But things don't stop at that point; that's just when the number of new cases each day stops growing and begins to decay back to zero. There's still quite a bit of infecting after that point. You want (1-Si) instead of p, where Sâz is the fraction of the population that remai

    • by gweihir ( 88907 )

      Yes, probably. Exponential growth is a bitch. If herd-immunity works long-term (does not really look like it now), that could help, but other than that vaccine or effective medication are the only way our. A vaccine is not assured in the short-term though, for example look at the common cold or at HIV.

      • by HiThere ( 15173 )

        AFAIK, we don't currently have any basis to just acquired immunity. It could be good for weeks, months, years, or decades, or even just a few days. My *guess* would be a few months, but I've not real basis for that.

        • by gweihir ( 88907 )

          AFAIK, we don't currently have any basis to just acquired immunity. It could be good for weeks, months, years, or decades, or even just a few days. My *guess* would be a few months, but I've not real basis for that.

          Indeed. We have some weak statistical evidence for short-term immunity, but how good that is and how long it keeps is anybodies guess. The idea that there is immunity of any useful length is otherwise just derived from other corona-viruses, and purely speculative for this one.

          Also, there is growing evidence that there are two trains going around and one does not confer immunity for the other.

    • by Xylantiel ( 177496 ) on Friday May 15, 2020 @07:13PM (#60065704)
      South Kore's "second wave" peaked at 0.7 infections per day per million people. The US is currently at 75 !! per day per million. These Asian countries are experiencing small, containable localized outbreaks. Calling them a "second wave" is simply irresponsible journalism trying to make it sound like containment is impossible when the exact same data proves that it is containable.
      • Just to add, France is at around 7 new infections per day per million and Germany at 15 both trending steadily downward. I think we are fast approaching the point where the US will be walled off from the civilized world until we sort ourselves out.
      • by HiThere ( 15173 )

        It really *is* a second wave. If you don't jump on it and smash it down quickly, you'll find out.

        • by Xylantiel ( 177496 ) on Friday May 15, 2020 @08:22PM (#60065912)

          Nope. It would need to at least modestly comparable to the first, which peaked at 20 new/mil/day in South Korea. Like thirty times higher.

          This is what a contained local outbreak looks like, not an epidemic "wave". You can look at the plot yourself. [wikimedia.org] That little blip at the end, that is being called the "second wave". It is not, and saying so deceives almost all readers.

          If it wasn't contained, it could become a second wave. But there is no evidence that is happening now, and, again, saying so is being deceptive to pander to an uninformed American audience. Moderate flashing outbreaks are expected for a disease that is contained rather than eliminated.

  • Unless you think continuing the lockdown for another year is a viable option.
    • Can't fight evolution. Eventually the weak get wiped out by something.

      -Harsh Reality is calling.
      • by Megol ( 3135005 )

        Well, you're still here.

      • by DRJlaw ( 946416 )

        Eventually the weak get wiped out by something.

        Mostly unwarranted self-confidence that they are stronger than their peers, followed by a rapid take-down from an unexpected direction.

        Like revolution after a social upheaval. Where the "strong" tend to get lined up against a wall.

      • Eventually everything gets wiped out by something.

        Might want to have a plan on that.

      • Can't fight evolution. Eventually the weak get wiped out by something.

        Everything gets wiped out by something. Species that can reproduce faster, even if they get killed by the billions, always win over a slow-breeding but strong species.

        • Species that can reproduce faster, even if they get killed by the billions, always win over a slow-breeding but strong species.

          An obvious exception to this rule: Humans.

          We are one of the slowest breeding species, but also one of the most successful.

          The fossil record shows that the species most likely to survive are not the fastest breeding or the slowest breeding, but those with the widest geographic distribution.

    • It isn't so this last few months should've been a dress rehearsal for our current inflection point. Pretending this was flu, while ignoring 100s of thousands of deaths with so many lockdowns in place, is ignorance.

    • If by "lockdown" you mean banning international travel, wearing masks in public and washing our hands, we can totally keep that going for another year. But we don't actually have to do that. If we have roving drones kill anyone outside for the month of June, globally, that should be sufficient. It's assholes who refused to lock down in March/April that's the reasons that we have to keep going.

      • by HiThere ( 15173 )

        No. That's *part* of the reason. Another big part of the reason is the asymptomatic carriers, some of whom have been shown to carry COVID around for months without knowing it. There may be other parts.

  • Communism! (Score:3, Informative)

    by SocietyoftheFist ( 316444 ) on Friday May 15, 2020 @06:02PM (#60065436)

    My rights!

    Meanwhile the second wave was far more deadly than the first and third of the 1918 pandemic. I'm guessing we don't learn from history. While we do need to work, as safely as possible, this anti-science anti-fact agenda is going to kill a lot of people.

    • Re: (Score:1, Troll)

      by Jarwulf ( 530523 )
      I love how people...~90% of times the left use the word 'science' as a synonym for 'my preferred policy'. Science isn't a sentient God. It doesn't have preferences or priorities. It doesn't 'want' to sign the Paris Climate Accords and you're not going 'against' it if you don't feel like destroying your grandpa's legacy by keeping your antique shop closed another year.
      • Is that supposed to be a cogent argument? I didn't argue about keeping a lockdown, there is no society without work. Plenty of people out there think this was all just bullshit. It wasn't like the movies dammit! Without bodies everywhere it was all a lie. So 85k deaths while 90% of the population was in lockdown means nothing right?

        • Re: (Score:2, Troll)

          by Jarwulf ( 530523 )
          Well then we should have focused our efforts on locking down the fraction of nursing homes and old folks rather than wasting 1000x more effort and causing orders of magnitude more havoc to our economy pour truckloads of sand to foil teenagers.
          • Re:Communism! (Score:5, Interesting)

            by jbengt ( 874751 ) on Friday May 15, 2020 @08:37PM (#60065942)
            Early on, we should have tested and locked down those infected and their contacts, before the numbers got too big to handle, along with physical distancing measures like wearing masks in public, avoiding crowds, and staying home if you have the sniffles. Then we wouldn't have had to lock down half the economy, which has been ineffective, anyway, because of the large numbers of loopholes in the "stay-at-home" measures we've taken, not to mention the number of people ignoring some or all of the physical distancing.
          • We should have tested and isolated, like the countries that fared much better than us. Trump and Putin were nice and smug, how many deaths do those countries account for now?

            • by Mashiki ( 184564 )

              You did. Did you fail to notice that nearly all in the majority of the hotspots it was in nursing homes, where governors were sending infected elderly back into said nursing homes. Never mind that comparing Trump and Putin is idiotic, after all. In the US governors are responsible for the state policy.

              • After all, local authorities are responsible for local action almost everywhere. But the federal government is responsible for the federal response. The chief executive told me that 16 cases was the peak. The chief executive lied willfully. Tell me how testing and isolation doesnâ(TM)t help try to keep it from spreading to at risk populations at say a nursing home?

      • Re: (Score:1, Flamebait)

        by jwymanm ( 627857 )
        Thank you. I frigging love science and I want whatever horse the liberals road in on to bludgeon them with it's horseshoes. They are using science to describe their political aspiration of some imaginary global kumbaya happening somehow during this pandemic or that the leading health experts/leftist governors (the ones with the highest death count atm) can and have not done wrong. They then are turning around and saying we're making it political when they are constantly saying red states are cesspools or po
        • If everything had been sunshine the man at the top would have claimed *all* the credit. So..."the buck stops here" and all that.

    • by jdossey ( 172868 )

      How many people has science killed?

  • They don't change gloves between exams. You're sick? Let's take swabs, check you out, and then send you into another room for sick people. Then bring the next person in, and start the next exam...
  • Trump said with or without a vaccine it's just going to go away, and he never lies! /s

  • ...at "old" and "woman".
  • You mean the first wave that never stopped, what with leaked intel indicating that China has over 640,000 cases.

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