[HN Gopher] Outbreak - playable simulations of a disease outbreak
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       Outbreak - playable simulations of a disease outbreak
        
       Author : gringoDan
       Score  : 88 points
       Date   : 2020-03-16 18:59 UTC (4 hours ago)
        
 (HTM) web link (meltingasphalt.com)
 (TXT) w3m dump (meltingasphalt.com)
        
       | 40four wrote:
       | This stuff drives me crazy. I know the author of this (and of the
       | linked Washington Post article) are trying to help people gain
       | clarity, but it worries me that it only serves to accelerate fear
       | and panic.
       | 
       | These articles are making it sound as if the exponential part of
       | the curve will just continue on forever until it consumes the
       | whole population. The (self-admittedly) overly simplified
       | simulations aren't helping either.
       | 
       | Front this article >
       | 
       |  _And here 's the kicker: even if we manage to "flatten the
       | curve" enough to meaningfully space out the case load, we're
       | still positioned to lose millions and millions of lives._
       | 
       | From the WaPo article >
       | 
       |  _This so-called exponential curve has experts worried. If the
       | number of cases were to continue to double every three days,
       | there would be about a hundred million cases in the United States
       | by May._
       | 
       |  _Still, without any measures to slow it down, covid-19 will
       | continue to spread exponentially for months. To understand why,
       | it is instructive to simulate the spread of a fake disease
       | through a population._
       | 
       | It will continue to spread exponentially for months!? Millions &
       | millions of cases & or deaths? These are really sloppy and
       | dangerous ideas to put in peoples head. They are just plain
       | wrong, and not how pandemics play out in reality.
       | 
       | Here is what the CDC says about how pandemics spread (Under the
       | 'COVID-19 Now a Pandemic' heading)
       | https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/summ...
       | 
       |  _Pandemics of respiratory disease follow a certain progression
       | outlined in a "Pandemic Intervals Framework." Pandemics begin
       | with an investigation phase, followed by recognition, initiation,
       | and acceleration phases. The peak of illnesses occurs at the end
       | of the acceleration phase, which is followed by a deceleration
       | phase, during which there is a decrease in illnesses. Different
       | countries can be in different phases of the pandemic at any point
       | in time and different parts of the same country can also be in
       | different phases of a pandemic._
       | 
       |  _Different parts of the country are seeing different levels of
       | COVID-19 activity. The United States nationally is currently in
       | the initiation phases, but states where community spread is
       | occurring are in the acceleration phase. The duration and
       | severity of each phase can vary depending on the characteristics
       | of the virus and the public health response._
       | 
       | So no, it will NOT continue exponentially for months. Especially
       | given the amount of isolation/ quarantine measures and canceling
       | of large events taking place. I think it is reasonable to expect
       | these measures will help us progress through to the deceleration
       | phase faster.
       | 
       | Further-more, there is more and more evidence coming out
       | suggesting the in China where it started, they have already
       | entered the deceleration phase. This should be encouraging news
       | for us in USA where it is just beginning.
       | 
       | https://www.aljazeera.com/programmes/newsfeed/2020/03/big-dr...
        
         | feanaro wrote:
         | What happens once China starts dismantling mitigations
         | currently in place, given that the majority of the population
         | is still naive to the virus? Is it reasonable to expect they
         | can wait out the virus disappearing completely by tracking all
         | active cases until they have recovered?
        
         | saberdancer wrote:
         | It's probably better to err on the side of caution than the
         | alternative.
        
       | xwdv wrote:
       | This is missing a couple things:
       | 
       | 1) Cells should have random demographics such as male/female and
       | age, and a virus could respond differently to them
       | 
       | 2) The virus should have some capability for mutation as it
       | spreads. (probability of changing variables from the initial
       | configuration by some percent)
        
       | wiz21c wrote:
       | How can I model the type of interaction between people. For
       | example :is school a stronger vector of propagation than
       | workplace ?
       | 
       | I ask because everybody in my country talks about what to stop
       | (restaurants, culture,...) but never explain why working is
       | considered less of a problem... (I have my little idea but well,
       | ain't sure)
        
         | baq wrote:
         | when economy shuts down, more people die of malnutrition than
         | of the virus.
        
         | JamesBarney wrote:
         | School is a bigger issues because children are usually are much
         | closer together, are in the same room with far more people, and
         | have far more interaction that adults at a typical job.
        
       | etiam wrote:
       | Anybody know an open source version of something like Plague Inc:
       | Evolved ? I sure as hell am not playing computer games now. I'm
       | going to get my crisis preparedness up properly and try to help
       | my community. But it would be an interesting thing to have for
       | the quarantine phase...
        
         | veeralpatel979 wrote:
         | I'm a fan of Plague Inc on iOS and have unlocked all the
         | pathogens...what's the difference between Plague Inc and Plague
         | Inc Evolved?
         | 
         | Is the latter worth buying and playing?
         | 
         | Also: if there's a design doc out there for Plague Inc or a
         | similar game, I'd love to see it.
        
           | etiam wrote:
           | Cool. I covered all the pathogens too, though I think I had
           | quite a few genes left to unlock.
           | 
           | I've never played the original Plague Inc, so I can't tell
           | you the difference from experience, but according to
           | Wikipedia (https://en.wikipedia.org/wiki/Plague_Inc:_Evolved
           | , isn't it amazing that it has its own Wikipedia page?):
           | 
           |  _The core game of Plague Inc: Evolved is the same as Plague
           | Inc. - the player controls a plague which has infected
           | patient zero. The player must infect and kill the whole world
           | population by evolving the plague and adapting to various
           | environments. However, there is a time pressure to complete
           | the game before humans, the opponent, develop a cure for the
           | plague. [...] It also includes all of the expansion packs
           | from the original Plague Inc. game_
           | 
           | Great game concept, though still with some untapped potential
           | in my opinion. I keep getting inspired to replay it by the
           | news right now, but we really have much, much more urgent
           | things to attend to. Prepare, and help out, but stay safe!
        
       | Swizec wrote:
       | Heh I published something very similar this morning. Looks like
       | everyone has the same idea
       | 
       | https://reactfordataviz.com/articles/corona-simulation/
        
         | pmontra wrote:
         | Interesting simulation but very slow at showing any effect.
         | After 3500+ iterations (several minutes) there were still only
         | 5 deaths in the first simulator (without distancing), all in
         | the first iterations. I suggest to find a way to make it clear
         | when it's done or speed it up to get to the point in one minute
         | max.
        
           | Swizec wrote:
           | That's weird, I get many deaths in just a few iterations.
           | What were you running on? You seem to have found a bug.
           | 
           | Here's a video of when I run these:
           | https://twitter.com/Swizec/status/1239599601537015808
        
       | nabla9 wrote:
       | Remember pandemic2 flash game?
       | 
       | It was almost impossible to kill all humans without starting the
       | infection from Madagascar. If you started from somewhere else
       | Madagascar always had time to close the borders.
       | 
       | Lo and behold: Madagascar is one of the few countries without
       | infections in Global Cases tracker.
       | https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.h...
        
         | Ntrails wrote:
         | And greenland as I recall? But yeah - thikn the trick was low
         | mortality so they took too long to respond
        
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       (page generated 2020-03-16 23:00 UTC)