March 21, 2020

The Three Essential Questions about COVID-19

Trustworthy and indepth news stories are more important now than ever.
Support our newsroom by MAKING A CONTRIBUTION HERE

Public-health specialists in the United States and elsewhere must focus squarely on gathering more data regarding how the COVID-19 virus spreads, and which segments of the population are most vulnerable. Answering these questions as quickly as possible has become a matter of life and death.

NEW YORK – The single most important component of an effective response to the COVID-19 pandemic is rapid use of data. I recently highlighted 19 critical data gaps regarding the novel coronavirus that we need to address. Now, with COVID-19 continuing to spread rapidly in the United States and elsewhere, the US Centers for Disease Control and Prevention (CDC) and other public-health specialists must urgently answer three questions in particular.

First, do people without symptoms and children spread the novel coronavirus?

If we are to know who to test and who to quarantine, it is crucial to understand whether asymptomatic people spread infection. If kids don’t account for a substantial proportion of the spread of the COVID-19 virus, as they do with seasonal influenza, then there is much less reason to close schools, and perhaps those that are closed can reopen sooner. Although children up to at least age 18 appear to become very ill with COVID-19 less often, they may be able to spread infection. We need to know how much risk infected children pose to the older and more medically vulnerable people around them, especially because many of these people may be called on to provide childcare during school closures.

Investigating the risk of spread to contacts from patients who never developed symptoms, or from patients who later developed symptoms, can clarify the risk of spread from asymptomatic people. Public-health specialists need to investigate clusters of cases and see how many have a child as an index (that is, first) case. Is this proportion lower than would be expected statistically? And in family and other clusters, are there chains of transmission that start with kids?

Second, how is the virus spreading in hospitals?

We urgently need to protect health-care workers and also to preserve scarce infection-control resources so that we can maintain or expand capacity to provide intensive care to patients who need it. For example, whereas COVID-19 infections spread rapidly to patients and hospital staff in Wuhan, China, and in Northern Italy, Singapore has apparently yet to report a single infection of a health-care worker, despite diagnosing nearly 250 cases (one who did become infected was a non-medical contact of a confirmed case). Care of a severely ill patient in Singapore, including intubation and intensive care before he was diagnosed, resulted in the exposure of 41 health workers, most of whom used only surgical masks; none became infected.

The number of COVID-19 cases is likely to exceed the supply of protective equipment for health-care professionals, so we need to know which items are most important. For example, regular surgical masks may be sufficient for health-care workers in most settings, except where there is a risk of aerosolization (such as during bronchoscopy, sputum induction, and intubation).

Investigating known transmission of COVID-19 within nursing homes and hospitals can identify the sources and routes of the virus’s spread. That would enable us to establish best practices to protect health-care workers and other patients in higher- and lower-resource settings.

Third, who is most likely to die from COVID-19?

To reduce illnesses and deaths among people infected with the virus, our highest priority must be protection and services for people who are most likely to become severely ill if infected – and who therefore should stay at home and avoid contact with others to the greatest extent possible. Although older people and those with underlying health conditions are at greater risk from COVID-19, we don’t know the precise age at which the risk actually increases, or the extent to which specific comorbidities elevate that risk. If, for example, a 62-year-old with well-controlled hypertension and no other illness is not at elevated risk, as seems possible, then we can focus resources on people who need them more.

Analysis should cover only patients diagnosed at least 30 days earlier, and calculate mortality by age, gender, and health status. This might indicate which conditions predict severe illness – for example, obesity, hypertension, diabetes (both well- and poorly controlled), specific medication use, or other factors.

These studies might already be underway – I certainly hope so. Much of the early US public-health response to COVID-19 was derailed by the need to deal with infections on cruise ships and repatriate travelers. It’s now crucial that public-health specialists at the CDC and state and local health departments focus on getting answers to these and other critically important questions. By responding rapidly to the data, we can design and implement measures to prevent the further spread of COVID-19, improve outcomes among those infected, and reduce societal harm.

Good data on COVID-19 is a precious resource, and it needs to be much less scarce. Answering epidemiological questions isn’t a matter of intellectual curiosity; the knowledge we gain could mean the difference between life and death. And we’re now at the point where every minute counts.

Tom Frieden, a former Director of the US Centers for Disease Control and Prevention and former Commissioner of the New York City Health Department, is President and CEO of the global non-profit initiative Resolve to Save Lives, an initiative of Vital Strategies, and Senior Fellow for Global Health at the Council on Foreign Relations.

The text has been adapted from Project Syndicate website

We can't do quality journalism without your support

Perhaps it goes without saying — but producing quality journalism isn't cheap. At a time when newsroom resources and revenue are declining, The Chronicles remains committed to "Serving Your Right To Know The Truth". Stand with us as we document Rwanda's remarkable journey for you and the future generation. Do you value our journalism? We can't do it without you. Show us with your support by CONTRIBUTING HERE.
Email your news TIPS to or WhatsApp +250788351327.
You can also find us on Signal


  1. Its like you learn my thoughts! You appear to know a lot
    approximately this, such as you wrote the ebook in it or something.
    I believe that you simply can do with a few p.c.
    to drive the message home a bit, however instead of that, this is magnificent blog.
    A fantastic read. I will certainly be back.

  2. Thank you for any other informative site. Where else may I get that type of
    information written in such a perfect means?
    I have a challenge that I am simply now operating on, and I’ve been at the look out for
    such info.

  3. Let me give you a thumbs up man. Can I
    show you exactly how to do amazing values and if you want to have a checkout and also share valuable
    info about how to make a fortune yalla lready know follow me
    my fellow commenters!.

  4. Good day! This is kind of off topic but I need some help from an established blog.
    Is it very difficult to set up your own blog? I’m not very techincal but I can figure things out pretty fast.
    I’m thinking about setting up my own but I’m not sure where to start.
    Do you have any tips or suggestions? Cheers

  5. Oh my goodness! Amazing article dude! Thank you so much, However I am having problems with your RSS. I don’t know why I am unable to join it. Is there anyone else getting identical RSS problems? Anyone that knows the answer can you kindly respond? Thanks!!

  6. I believe that is one of the most significant information for me.
    And i am satisfied studying your article. However wanna
    observation on few basic issues, The site style is wonderful, the articles is really great : D.
    Just right task, cheers

  7. Hello, i think that i saw you visited my site so i came to “return the favor”.I
    am attempting to find things to enhance my website!I suppose its
    ok to use a few of your ideas!!

  8. I don’t even understand how I finished up right here,
    but I thought this submit was good. I don’t know who you’re however certainly you are going to a well-known blogger if you aren’t already.

  9. obviously like your website but you need to check the spelling
    on quite a few of your posts. Many of them are rife with spelling issues and I to find
    it very troublesome to inform the truth nevertheless I’ll surely come back again.

  10. Its such as you read my mind! You seem to grasp a lot about this, like you wrote the ebook in it
    or something. I feel that you just can do with some
    p.c. to drive the message home a little bit, however
    other than that, this is excellent blog. An excellent read.

    I will definitely be back.

  11. Do you mind if I quote a few of your articles as long as I provide credit and sources back
    to your blog? My blog site is in the exact same area of interest as yours and my visitors
    would certainly benefit from a lot of the information you provide
    here. Please let me know if this alright with you.
    Appreciate it!

  12. Aw, this was an exceptionally good post. Taking the time and actual effort to generate a very good article… but what can I say… I procrastinate a lot and never seem to get nearly anything done.

  13. Hello! Do you know if they make any plugins to help with SEO?
    I’m trying to get my blog to rank for some targeted keywords
    but I’m not seeing very good gains. If you know of any please share.
    Thanks! You can read similar art here: Dobry sklep

Leave a Reply

Your email address will not be published. Required fields are marked *