COVID-19 Updated Data and Developments - 4.9.2020

• 1,502,618 COVID-19 cases worldwide; 89,915 deaths; 337,074 recovered.¹
  • There is a frequently updated map of COVID-19 cases online at https://coronavirus.jhu.edu/map.html.
• The United States continues to have the highest number of COVID-19 cases in the world with over 432,554 diagnosed cases.
• Spain has the second highest number of cases with more than 152,000 cases and Italy has the third highest number of cases with nearly 140,000 cases.
  • Deaths in multiple countries now exceed reported deaths in China. Deaths due to COVID-19 in Italy, Spain, France, the United Kingdom, and Iran exceed China’s total.
  • New COVID-19 cases in China have dramatically decreased since early February. Newly diagnosed cases in China have not exceeded 100 per day in the past week. However, there remains uncertainty in many circles about the integrity of Chinese reporting.²
  • The number of diagnosed cases outside of China exceeds those within China-- nearly 95% of all coronavirus cases have been diagnosed in other countries throughout the world.
  • Studies from China finds that the mortality rate in Wuhan for symptomatic individuals is 1.4%.³ The death risk estimate from Wuhan, China is likely to be similar to that seen in the US if our healthcare system experiences a breakdown similar to that of the healthcare system in Wuhan.⁴ This finding indicates that proactive public health interventions to reduce burden on hospitals and healthcare workers, including social distancing, increased personal hygiene, and voluntary movement restrictions, are essential to reducing transmission and fatality rates.

Epidemic curve of confirmed coronavirus cases worldwide by region (from European Centre for Disease Prevention and Control COVID-19 Situation Update, as of 4/9/2020).

Distribution of coronavirus deaths worldwide by region (from European Centre for Disease Prevention and Control COVID-19 Situation Update, as of 4/9/2020).⁵

• New urban hotspots have emerged in Detroit,⁹ Miami,¹⁰ Los Angeles,¹¹ and Chicago.¹²
• The delay in ordering stringent control measures in Louisiana means that the state has experienced during the past week the fastest growing epidemic in the US.¹³ Close social interactions, especially during the weeks leading up to Mardi Gras, appear to be at the root of the accelerating expansion.
• Risk in population:
  • A new study from the Lancet takes into account the undetected cases of COVID-19 to estimate a mortality rate of 0.66% in China.¹⁴
  • A study based on data from Wuhan estimates that the mortality rate of symptomatic COVID-19 cases is 1.4%. Those aged 60 and above were at a much greater risk of death than those aged 30-59 and the risk of symptomatic infection increased with age.¹⁵
  • The fatality rate estimate for COVID-19 has been very difficult to estimate as testing practices and availability vary widely between countries. In many areas, testing has only been given to the most severely ill patients and so many more cases of coronavirus likely have gone undetected.¹⁶
  • The fatality rate from data already available is 1.3% in people 50-59, 0.4% in people 40-49, and 0.18% in people 30 to 39. Those that are 29 and under face mortality rates 0.09% and under, and children ages 0-9 are estimated to experience mortality at rates below 0.01%.¹⁷ Data from the CDC shows that young adults ages 20-44 face a substantial risk of serious illness and hospitalization from the coronavirus.¹⁸
  • New data from the CDC has confirmed that individuals with underlying conditions are at greater risk of experiencing severe outcomes as a result of COVID-19. However, the CDC has reiterated that measures should be taken to protect all persons, including those without underlying conditions.¹⁹

Hospitalization Rates and Characteristics of Patients Hospitalized with Laboratory-Confirmed Coronavirus Disease 2019 — COVID-NET (study area), 14 States, March 1–30, 2020)²⁰

• Initial findings from a CDC study of hospitalized patients diagnosed with COVID-19 suggest that male residents and black residents may face a disproportionately greater risk of being affected by and hospitalized due to coronavirus.

Laboratory-confirmed coronavirus disease 2019 (COVID-19)–associated hospitalization rates,* by age group — COVID-NET, 14 states,† March 1–28, 2020²¹

• Elderly: The death rate in elderly adults aged 80 or older is very high and believed to be over 15% and possibly as high as 22%.²² Older adults (those over 60 and particularly those over 80) and those with serious chronic health conditions (including heart disease, diabetes, and lung disease) are at a higher risk of getting very ill due to COVID-19. ²³
• Children: Initial evidence suggests that children seem to be getting infected at the same rate as adults but have milder symptoms.²⁴ In China only 2.4% of all cases are in young children.²⁵ However, a new study of more than 2,000 children in China suggests that children may be more susceptible to coronavirus than previously thought. One third of the children included in the study were confirmed cases while the other two-thirds were suspected cases.²⁶
• Health care workers, home health aides, first responders, and teachers are among those at greatest risk of contracting coronavirus as a result of their job.²⁷
• Those that work in lower-income jobs may also face increased risk as the ability to work from home may not be feasible-- only 9.2% of those in the bottom income quartile (lowest 25% income earners) are able to work from home while 20.1% of those in the third income quartile (second-lowest, 25-50% incomes earners) are able to work from home.²⁸

New US developments

• A number of antibody tests to detect previous COVID-19 infection and thus possible immunity are beginning to become available. These tests may be the next step to determining who could be allowed to return to work.²⁹
• Minority and marginalized groups are especially vulnerable to COVID-19. Working-class immigrant neighborhoods such as Queens, New York have been devastated by the pandemic.³⁰ Black Americans are dying at disproportionately high rates such in Louisiana where they represent a third of the population but 70% of those who have died.³¹
• After weeks of record breaking claims, US jobless claims now reach 16 million.³²
• With more than 700 Americans under the age of 50 dying from COVID-19, there is increasing concern that the impact on young adults (those <50 years old) is being underestimated.³³
• The CDC now recommends the use of Face Cloth Coverings to help stop the spread of COVID-19. Face cloth coverings should be worn in public settings where it is difficult to practice social distancing. ³⁴
• Inconsistent protocols and a lack of resources resulted in an underestimation of COVID-19 death rates which has hampered local and national responses to the pandemic.³⁵
• There is increasing concern about the accuracy of COVID-19 testing in the US. Although data is currently limited but based on personal experience with patients, some doctors believe that ~30% of those who receive a negative test may actually be infected.³⁶
• New US intelligence suggests that China may have concealed the true number of COVID-19 cases. ³⁷
• New evidence suggests that social distancing measures in the US are contributing to a rapid decline in fevers, one of the most common symptoms of coronavirus infections. The number of fevers appears to be holding steady or dropping throughout most of the country, except in New Mexico (where stay at home orders were implemented later than other states) and New Orleans (as a result of crowding during Mardi Gras).³⁸
• Johnson and Johnson will start human testing of their COVID-19 vaccine in September, to be ready for emergency use by early 2021. The vaccine would be sold on a not-for-profit basis.³⁹
• Congress passed and President Trump signed a $2 trillion rescue package to combat COVID-19.⁴⁰
• The US Treasury and IRS delay the tax payment deadline by 90 days.⁴¹

Known cases in Connecticut (call 211 or text "CTCOVID" to 898211 for information)

As of April 8, 2020 there are 8,781 confirmed cases, 1,418 hospitalizations, and 335 deaths. 23,270 patients have been tested in the state.⁴²

• Fairfield County: 4,417 cases
• Hartford County: 1,290 cases
• Litchfield County: 292 cases
• Middlesex County: 174 cases
• New Haven County: 1,945 cases
• New London County: 120 cases
• Tolland County: 128 cases
• Windham County: 49 cases
• Pending address validation: 366 cases

Graphs from Connecticut COVID-19 Update, April 8, 2020.⁴³

As of April 6, 2020 Yale New Haven Health has 291 COVID-19 patients.

• 84 patients are in the ICU and another 59 patients are on ventilators.
  • Compared to influenza patients who are on ventilators, more COVID-19 patients are on prolonged support.
• Two empty floors at the top of Smilow Cancer Center tower of YNHH have been opened up to accommodate the new CoV patients.
• Contact tracing
  • ~30 cases from Yale Health have had a contact tracing interview
  • ~106 contacts have been identified
  • ~64 contacts with sufficient information have had notification initiated

Connecticut developments⁴⁴

• Governor Lamont and the Connecticut Department of Public Health have requested donations of Personal Protective Equipment (PPE) for those working in health care settings. The request includes a call for N95 masks, face masks and shields, nitrile or non-latex gloves, hand sanitizer, and other items. Those able to donate are encouraged to go to www.211ct.org/DonationsCOVID19 to contact the state.⁴⁵
• Yale has opened 300 dorm rooms to first responders and healthcare workers caring for COVID-19 patients.⁴⁶
• Classes at all public schools have been canceled through April 20, unless modified.⁴⁷
• Connecticut grocery stores instituted “Safe Store” practices to limit the number of shoppers that can be in a store at any time.⁴⁸ New Haven has assigned health inspectors the task of enforcing distancing measures at grocery stores in response to complaints about non-compliance.⁴⁹
• Yale launched a multimillion dollar fund to aid New Haven and will match dollar for dollar towards its $5 million goal.⁵⁰
• Professor Marie-Louise Landry at the Yale School of Medicine and her lab have established their own test for SARS-CoV-2 with the help of YSPH researcher Dr. Nate Grubaugh. Her clinical lab tested 752 patient samples from 3/13 to 3/21. They have been able to keep up and report results the same day samples are received.⁵¹

Known cases in Rhode Island (call 401-222-8022 for information)

As of April 8, 2020⁵²

• 1,450 confirmed cumulative cases
• 143 patients currently hospitalized
• 45 patients currently in ICU
• 35 deaths in the state

Graph from Rhode Island Department of Health COVID-19 Disease Data dashboard.⁵³

• All cars with out of state license plates are being asked to participate in voluntary checks when they enter Rhode Island. If visitors from out of state are planning to stay in Rhode Island, they are being asked to self-quarantine for 14 days and are also being asked to provide their name, phone number, and the address they are staying in the state to ensure that they are self-quarantining. The measure is intended to reduce the transmission of coronavirus from those visiting Rhode Island.⁵⁵
• The Rhode Island Department of Business Regulations is requesting that stores currently open to the public restrict the number of shoppers in their building to 20% of the posted Fire Marshal Capacity at any given time. This restriction is meant to reduce coronavirus spread as well as allow shoppers to maintain adequate social distance from one another while shopping.⁵⁶
• Starting March 23, all public schools in Rhode Island will implement distance learning.⁵⁷

• In Germany, Chancellor Angela Merkel expressed “cautious hope” as new coronavirus infections in the country dropped from around 7,000 per day to around 4,000 per day last week. However, Chancellor Merkel warned that people should continue to take preventative measures so that coronavirus does not spread further.⁵⁸
• Poorer nations are being out-spent by the US and Europe in the fight against COVID-19. As richer nations scramble to purchase personal protective equipment, poorer nations have experienced difficulty in acquiring necessary medical equipment and coronavirus tests.⁵⁹
• Prime Minister Shinzo Abe of Japan will declare a state of emergency in 7 prefectures as new coronavirus cases continue to rise in populated areas. Public transit and grocery stores will remain open, though schools could be asked to close.⁶⁰
• Prime Minister Boris Johnson of Britain has been hospitalized more than a week after testing positive for COIVD-19. ⁶¹ As of this afternoon, he has been released from the ICU.⁶²
• The 2020 Summer Olympics in Tokyo will be postponed a year to July 23, 2021.⁶³
• As COVID-19 spreads around the world, developing countries may be less prepared to deal with the pandemic than developed countries because of a lack of resources, general hygiene, and overcrowding.⁶⁴
• The EU has linked Russian media outlets to disinformation about the coronavirus. The EU-produced report states that the disinformation seeks to undermine public trust in health care systems abroad.⁶⁵

Coronavirus is a family of viruses that have been known to infect humans. Viruses in the family are known to cause the common cold, SARS, and MERS. The virus that causes COVID-19 infects people and is easily spread person-to-person but is far less virulent than SARS. Cases have been detected in most countries worldwide, including the United States, and has officially been declared a pandemic, or a global disease outbreak. COVID-19 causes a respiratory disease that may be identifiable by dry coughing, breathing difficulties, and fever. Those that suspect they are infected with coronavirus should call their health provider first and should not go to a health care facility unless directed to do so.

The novel (new) coronavirus, formally named “SARS-CoV-2,” and the disease it causes has been named “coronavirus disease 2019” (abbreviated as COVID-19) by the World Health Organization.

A phase 1 clinical trial for a vaccine designed by Moderna to protect against COVID-19 is currently underway in Seattle.⁶⁶ Vaccines must go through at least 3 clinical phases to ensure their efficacy and safety before they can be approved and used in the general population.⁶⁷ Even with an expedited process it will be at least a year before a COVID-19 vaccine is fully developed and made available to the public.⁶⁸

Vaccines are one of the most effective ways to prevent diseases. Vaccines are made out of killed or weakened parts of the virus or bacteria of interest. Once inside the body, the vaccine is able to stimulate the immune system to develop antibodies and thus immunity to the disease, all without the person getting the disease.⁶⁹

The vaccine currently being developed by Moderna uses genetic information, messenger RNA (mRNA), to deliver the vaccine. mRNA vaccines are an emerging platform and as of now no mRNA vaccine has reached the market. Compared to some forms of traditional vaccines (DNA-based, live/killed attenuated viruses), mRNA vaccines are thought to be safer because they are non-infectious and have no risk of potentially mutating inside the human body. Through chemical modifications mRNA is stabilized and readily enters into cells. Lastly, mRNA vaccine production is inexpensive, fast, and scalable.⁷⁰

On Monday the US government officially recommended that people should avoid in-person gatherings of 10 or more people.⁷¹ This recommendation is supported by evidence from South Korea and China, both of which appear to slowly be returning to life as normal after 8 weeks of anti-coronavirus measures.⁷² On March 10, China closed the last of its temporary emergency hospitals⁷³ after seeing a dramatic decrease in new cases over the past couple of weeks.⁷⁴ Likewise, South Korea has experienced a substantial decrease in new cases over the past week.⁷⁵

As the United States contends with this new and evolving situation, it appears likely that many businesses, offices, and schools will remain closed for longer than two weeks.

• Symptoms
  • Symptoms may appear 2-14 days after exposure.
  • Fever
  • Cough
  • Shortness of breath
• Mounting anecdotal evidence suggests that a loss of smell and taste are significant symptoms associated with COVID-19. ⁷⁷
• Testing⁷⁸
  • As of March 15, all 50 states, the District of Columbia, and Guam have successfully verified COVID-19 diagnostic tests in state and local public health laboratories.
  • A number of states have opened “drive-through” coronavirus testing stations with more to come.⁷⁹
  • The number of tests still lags far behind need. The governors of many states have complained that the federal government’s response in making tests available has been inadequate.⁸⁰

• Person-to-person
  • Between people who are in close contact with one another (within about 6 feet).
  • Through respiratory droplets produced when an infected person coughs or sneezes.
• Respiratory droplets can spread through the air (6 feet) or land on nearby surfaces where they can survive for a period of time (“Our studies indicate that aerosol and fomite transmission of HCoV-19 is plausible, as the virus can remain viable in aerosols for multiple hours and on surfaces up to days.”)⁸²

• Clean your hands often
  • Wash your hands often with soap and water for at least 20 seconds especially after you have been in a public place, or after blowing your nose, coughing, or sneezing.
  • If soap and water are not readily available, use a hand sanitizer that contains at least 60% alcohol. Cover all surfaces of your hands and rub them together until they feel dry.
  • Avoid touching your eyes, nose, and mouth with unwashed hands.
• Avoid close contact
  • Avoid close contact with people who are sick
  • Put distance between yourself and other people if COVID-19 is spreading in your community. This is especially important for people who are at higher risk of getting very sick.
• Take steps to protect others
  • Stay home if you’re sick
  • Stay home if you are sick, except to get medical care. If you think you may have contracted the virus call your doctor first.
  • Cover coughs and sneezes
  • Cover your mouth and nose with a tissue when you cough or sneeze or use the inside of your elbow.
  • Throw used tissues in the trash.
  • Immediately wash your hands with soap and water for at least 20 seconds. If soap and water are not readily available, clean your hands with a hand sanitizer that contains at least 60% alcohol.
  • Wear a facemask
  • If you are sick: You should wear a facemask when you are around other people, when you go out in public, and before you enter a healthcare provider’s office. People who are caring for you should wear a facemask if they enter your room.
  • If you are NOT sick: The CDC recommends that all people who are not sick wear a cloth face covering in public settings where other social distancing measures are difficult to maintain, such as grocery stores and pharmacies. Wearing a cloth face covering in public is especially important in areas with significant community-based transmission.
  • Clean and disinfect
  • Clean AND disinfect frequently touched surfaces daily. This includes tables, doorknobs, light switches, countertops, handles, desks, phones, keyboards, toilets, faucets, and sinks.
  • If surfaces are dirty, clean them: Use detergent or soap and water prior to disinfection.

1 https://coronavirus.jhu.edu/map.html

2 https://www.nytimes.com/2020/04/02/us/politics/cia-coronavirus-china.html

3 https://www.nytimes.com/2020/03/19/health/wuhan-coronavirus-deaths.html

4 https://wwwnc.cdc.gov/eid/article/26/6/20-0233_article

5 https://www.ecdc.europa.eu/en/geographical-distribution-2019-ncov-cases

6 https://www.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6

7 https://coronavirus.jhu.edu/map.html

8 https://covidtracking.com/data

9https://www.nytimes.com/2020/03/30/us/coronavirus-detroit.html?action=click&module=Spotlight&pgtype=Homepage

10 https://www.miamiherald.com/news/coronavirus/article241613456.html

11 https://www.latimes.com/california/liveblog/coronavirus-live-updates-monday-march-30

12https://www.chicagotribune.com/coronavirus/ct-coronavirus-illinois-20200329-jjrz2vsgmvewvbpj7sd27jbmqu-story.html

13https://www.nytimes.com/2020/03/26/us/coronavirus-louisiana-new-orleans.html?action=click&module=Top%20Stories&pgtype=Homepage

14 https://www.eurekalert.org/pub_releases/2020-03/tl-pss_1033020.php

15 https://www.nature.com/articles/s41591-020-0822-7

16https://www.npr.org/sections/goatsandsoda/2020/03/27/821958435/why-death-rates-from-coronavirus-can-be-deceiving

17https://nymag.com/intelligencer/2020/03/coronavirus-and-its-high-mortality-rate-among-older-patients.html

18 https://www.cdc.gov/mmwr/volumes/69/wr/mm6912e2.htm?s_cid=mm6912e2_w

19 https://www.cdc.gov/mmwr/volumes/69/wr/mm6913e2.htm

20 https://www.cdc.gov/mmwr/volumes/69/wr/mm6915e3.htm

21 https://www.cdc.gov/mmwr/volumes/69/wr/mm6915e3.htm

22 https://www.nytimes.com/2020/03/14/health/coronavirus-elderly-protection.html

23https://www.businessinsider.com/coronavirus-death-rate-by-age-countries-2020-3#still-older-patients-in-south-korea-also-had-a-much-higher-death-rate-than-younger-ones-patients-older-than-80-had-a-72-death-rate-as-of-wednesday-6

24 https://www.nature.com/articles/s41591-020-0817-4

25https://www.washingtonpost.com/health/2020/03/10/coronavirus-is-mysteriously-sparing-kids-killing-elderly-understanding-why-may-help-defeat-virus/

26 https://www.nytimes.com/2020/03/17/health/coronavirus-childen.html

27 https://www.nytimes.com/interactive/2020/03/15/business/economy/coronavirus-worker-risk.html

28 https://www.bls.gov/news.release/flex2.t01.htm

29 https://www.nytimes.com/2020/04/02/health/coronavirus-antibody-test.html

30https://www.nytimes.com/2020/04/09/nyregion/coronavirus-queens-corona-jackson-heights-elmhurst.html

31 https://www.nytimes.com/2020/04/07/us/coronavirus-race.html

32https://www.nytimes.com/2020/04/09/business/economy/unemployment-claim-numbers-coronavirus.html

33https://www.washingtonpost.com/health/2020/04/08/young-people-coronavirus-deaths/?utm_campaign=wp_main&utm_medium=social&utm_source=twitter

34 https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/diy-cloth-face-coverings.html

35https://www.nytimes.com/2020/04/05/us/coronavirus-deaths-undercount.html?smid=tw-nytpolitics&smtyp=cur

36 https://www.wsj.com/articles/questions-about-accuracy-of-coronavirus-tests-sow-worry-11585836001

37https://www.bloomberg.com/news/articles/2020-04-01/china-concealed-extent-of-virus-outbreak-u-s-intelligence-says?sref=SCKvL4TY&utm_source=twitter&utm_content=business&utm_medium=social&utm_campaign=socialflow-organic&cmpid=socialflow-twitter-business

38 https://www.nytimes.com/2020/03/30/health/coronavirus-restrictions-fevers.html?auth=linked-google&smid=em-share

39https://www.wsj.com/articles/johnson-johnson-to-begin-human-trials-on-covid-19-vaccine-by-september-11585569380

40https://www.wsj.com/articles/house-lawmakers-race-to-washington-to-ensure-coronavirus-stimulus-passes-11585318472

41 https://www.cnbc.com/2020/03/17/treasury-and-irs-to-delay-tax-deadline-by-90-days.html

42 https://portal.ct.gov/coronavirus

43 https://portal.ct.gov/-/media/Coronavirus/CTDPHCOVID19summary4052020.pdf?la=en

44https://www.nhregister.com/news/coronavirus/article/Coronavirus-in-Connecticut-Live-updates-hour-by-15132401.php

45 https://portal.ct.gov/Coronavirus/Pages/Request-for-Personal-Protective-Equipment

46https://news.yale.edu/2020/04/03/yale-readies-hundreds-rooms-medical-personnel-first-responders?utm_source=YaleToday&utm_medium=Email&utm_campaign=YT_YaleToday-Students_4-6-2020

47 https://portal.ct.gov/coronavirus

48https://www.thehour.com/business/article/One-way-aisles-Plexiglas-shields-new-CT-15173676.php?src=nwkhpcp

49 https://www.newhavenindependent.org/index.php/archives/entry/press_briefing/

50https://www.nhregister.com/news/coronavirus/article/Yale-launches-multimillion-dollar-fund-to-aid-New-15162549.php

51 https://medicine.yale.edu/profile/marie_landry/

52 https://health.ri.gov/data/covid-19/

53 https://health.ri.gov/data/covid-19/

54 https://www.wpri.com/coronavirus/

55https://www.politico.com/states/new-york/albany/story/2020/03/29/rhode-island-ends-restrictions-on-new-yorkers-1269535

56 https://www.wpri.com/health/coronavirus/new-guidelines-released-to-limit-crowds-at-ri-stores/

57 https://www.necn.com/news/local/ri-gov-to-provide-update-on-coronavirus-response/2247461/

58 https://www.nytimes.com/2020/04/09/world/coronavirus-news-international.html?action=click&module=Well&pgtype=Homepage§ion=World%20News#link-473782f5

59 https://www.nytimes.com/2020/04/09/world/coronavirus-news-international.html?action=click&module=Well&pgtype=Homepage§ion=World%20News#link-1be3bb89

60 https://www.nytimes.com/2020/04/06/world/coronavirus-news.html#link-7d5698e

61 https://www.nytimes.com/2020/04/06/world/coronavirus-news.html#link-574d64dc

62 https://www.nytimes.com/2020/04/06/world/coronavirus-live-news-updates.html?action=click&module=Spotlight&pgtype=Homepage

63 https://www.nytimes.com/2020/03/30/sports/olympics/tokyo-olympics-date-coronavirus.html

64https://www.wsj.com/articles/coronavirus-is-advancing-on-poor-nations-and-the-prognosis-is-troubling-11585149183

65 https://www.theguardian.com/world/2020/mar/18/russian-media-spreading-covid-19-disinformation

66https://www.nih.gov/news-events/news-releases/nih-clinical-trial-investigational-vaccine-covid-19-begins

67 https://www.cdc.gov/vaccines/basics/test-approve.html

68 https://www.nytimes.com/2020/03/16/health/coronavirus-vaccine.html

69 https://www.cdc.gov/vaccines/vpd/vpd-vac-basics.html

70 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5906799/

71https://www.whitehouse.gov/wp-content/uploads/2020/03/03.16.20_coronavirus-guidance_8.5x11_315PM.pdf

72 https://www.nytimes.com/2020/03/17/opinion/coronavirus-social-distancing-effect.html

73 http://www.xinhuanet.com/english/2020-03/10/c_138863160.htm

74 https://www.worldometers.info/coronavirus/country/china/

75 https://www.worldometers.info/coronavirus/country/south-korea/

76 https://www.cdc.gov/coronavirus/2019-ncov/symptoms-testing/index.html

77https://www.nytimes.com/2020/03/22/health/coronavirus-symptoms-smell-taste.html?smtyp=cur&smid=tw-nytimes

78https://www.cdc.gov/coronavirus/2019-ncov/cases-updates/testing-in-us.html?CDC_AA_refVal=https%3A%2F%2Fwww.cdc.gov%2Fcoronavirus%2F2019-ncov%2Ftesting-in-us.html

79 https://www.businessinsider.com/drive-through-coronavirus-tests-states-2020-3

80 https://www.nytimes.com/2020/04/06/health/coronavirus-testing-us.html?action=click&module=Spotlight&pgtype=Homepage

https://www.nytimes.com/2020/04/05/us/coronavirus-aid-governors-pearl-harbor.html?action=click&module=Well&pgtype=Homepage§ion=US%20News

81 https://www.cdc.gov/coronavirus/2019-ncov/prepare/transmission.html

82 https://www.medrxiv.org/content/10.1101/2020.03.09.20033217v1.full.pdf

83 https://www.cdc.gov/coronavirus/2019-ncov/prepare/prevention.html

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