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  • In any fight, it's important to know your enemy.

  • Unfortunately, in our battle against COVID-19,

  • there's a lot we still don't know.

  • How many people are infected with the virus,

  • including those who don't show symptoms?

  • Is it seasonal or weather dependent?

  • When will it be safe to open the economy back up?

  • A new virus tracking tool is helping researchers and data modelers

  • better understand the virus and inform these public health decisions.

  • It's called the Greater Seattle Coronavirus Assessment Network, or SCAN.

  • The goal of SCAN is to understand the extent of COVID-19 in our community.

  • Think of the current pandemic like an iceberg.

  • There's a part of the iceberg that's above the surface that you can see

  • and there's potentially a much larger part of the iceberg

  • underneath the surface that you can't see.

  • With medical testing for COVID-19,

  • what we're able to see is the part that's above the water.

  • It continues to be a mystery how much is lurking underneath the surface.

  • We don't have enough testing right now in the clinical health care delivery system

  • to understand the full spectrum of disease: who's being infected

  • and the SCAN project allows us to look beneath the tip of the iceberg

  • to see how common this disease might be in the community that we're unaware of.

  • With SCAN, we're not testing everyone.

  • We're trying to representatively test individuals in our community

  • and you can think about it like sonar pings:

  • pinging to see what lurks beneath.

  • One of the key questions that SCAN can help answer

  • is what is the prevalence of COVID-19 amongst individuals

  • who don't have any symptoms as well as those who may have symptoms too mild

  • for them to necessarily show up at the ER or call their doctor.

  • As we move forward, particularly transitioning

  • from the current social distancing and stay-at-home policies

  • to relax those policies a little bit and get back to work,

  • it will be very important to monitor undetected infections.

  • In order to participate in SCAN,

  • individuals can go to the website at scanpublichealth.org,

  • and register and have a kit sent to their house.

  • When the swab kit arrives, you take that swab

  • and you'd either swab yourself or swab your child

  • and then you put it back in the box and then send it back to the lab.

  • The advantages of being able to collect a sample at home

  • include minimizing risk of exposure to health care workers

  • as well as allowing us to capture people earlier in their illness

  • when they're not necessarily sick enough to want to come in for care.

  • I run the molecular testing lab that processes all of the specimens

  • that are coming in from all of the participants.

  • So, when they get mailed in, they come through my lab

  • where we test them for the genome of the COVID-19 virus.

  • My focus is on mapping the transmission of COVID over time.

  • We take the data about who tests positive,

  • where they live in a large geographic area,

  • how old they are,

  • and use statistical modeling to turn that into a picture

  • of the intensity of COVID transmission in the Seattle metro area.

  • We also get a lot of insight from the virus genomes.

  • So we're able to see whether this infection is closely connected to this other infection.

  • And if they're very diverse you know that there is a lot of community spread.

  • If they're very closely related

  • its more likely to be very small pockets of community spread.

  • So, we can learn a fair amount from not a huge amount of sampling.

  • The 21st century's greatest tool against viruses is going to be

  • a better understanding of who is getting infected when and why,

  • so we can just stop the transmission process in its tracks.

  • SCAN is the first step in the U.S. towards having a better infrastructure to do that.

In any fight, it's important to know your enemy.

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B1 中級 美國腔

掃描大流行病的答案 (Scanning for answers to a pandemic)

  • 10 0
    Mahiro Kitauchi 發佈於 2021 年 01 月 14 日
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