UPDATES - Cases - Deaths - Countries - Death Rate - Incubation - Age - Symptoms - Opinions

U.S. Coronavirus Cases

1 new case in Humboldt County, California.

As of February 21, 2020 at 04:09 GMT, there have been 27 confirmed cases of patients infected with the 2019 novel coronavirus (2019-nCoV) in the United States:

  • 9 in California
  • 2 in Illinois
  • 1 in Wisconsin
  • 1 in Arizona
  • 1 in Washington state
  • 1 in Massachusetts
  • 1 in Texas

More information on these cases is presented in the table below:

State Cases Sex Age Date Case # Location Source
Texas 1     Feb. 13 15th San Antonio  
1 M 30s Jan. 21 1st Snohomish [7]
2 F 60s Jan. 24 2nd Chicago [8]
  M 60s Jan. 30 6th Chicago [12]
2 unkn. unkn. Jan. 26 3rd,4th Orange C., L.A. [9]
1 M adult Jan. 31 7th Santa Clara C. [17][18]
1 F unkn. Feb. 2 9th Santa Clara C.  
1 M 57 Feb. 2 10th San Benito C.  
1 F 57 Feb. 2 11th San Benito C.  
1 unkn. adult Feb. 11 13th San Diego  
1     Feb. 21 16th    
1     Feb. 13 14th    
1 unkn. student Jan. 26 5th Maricopa County  
1 M 20s Feb. 1 8th Boston [16]
Wisconsin 1       12th Madison  
Last updated: February 21, 2020, 04:09 GMT

Total Cases of Coronavirus in the United States

Patients Under Investigation (PUI) in the United States

CDC releases information regarding the number of cases and people under investigation that is updated regularly on Mondays, Wednesdays, and Fridays. Below is a history of cases in order to track the progression in the number of suspected cases and US states involved through time:

As of Feb. 10:

Number of U.S. States with PUI
(specimens awaiting testing)

As of Feb. 7:

Number of U.S. States with PUI
(specimens awaiting testing)

As of Feb. 5:

Number of U.S. States with PUI
(specimens awaiting testing)

As of Feb. 3:

Number of U.S. States with PUI
(specimens awaiting testing)

As of January 31:

Number of U.S. States with PUI
(specimens awaiting testing)

Previously, as of January 29, there were 92 suspected cases awaiting testing.

Number of U.S. States with PUI
(specimens awaiting testing)

Source: CDC - 2019 Novel Coronavirus (2019-nCoV) in the U.S.


  • HHS has declared Coronavirus a Public Health Emergency in the US
    As of Jan. 31, the Wuhan coronavirus is officially a public health emergency in the United States, Alex Azar, secretary of the US Department of Health and Human Services (HHS), announced at a White House press briefing.
  • On Jan. 31, the U.S. Centers for Disease Control and Prevention (CDC) has issued a federal quarantine for 14 days affecting the 195 American evacuees from Wuhan, China. Starting Sunday, Feb. 2, U.S. citizens, permanent residents and immediate family who have visited China's Hubei province will undergo a mandatory 14 days quarantine and, if they have visited other parts of China, they will be screened at airports and asked to self-quarantine for 14 days. The last time the CDC issued a quarantine was over 50 years ago in the 1960s, for smallpox.
  • President Donald Trump signed an order on Jan. 31 for the U.S. to deny entry to foreign nationals who have traveled to China within the past two weeks, aside from the immediate family of U.S. citizens.
  • On Jan. 30, the CDC had confirmed the first case of person to person transmission in the U.S.: [12] the husband of the Chicago, Illinois case who had returned from Wuhan, China on Jan. 13 and who tested positive for the virus on Jan. 24).
  • CDC stated on Jan. 30 that "It is likely there will be more cases of 2019-nCoV reported in the U.S. in the coming days and weeks, including more person-to-person spread."[12]
  • The virus has been confirmed in 5 states.
  • Despite rumors circulating on Jan. 31, no coronavirus case has been reported in New York City, and city health officials vehemently denied the rumor.[13]. On Feb. 1, however, the city's health commissioner did report that there is a person in NYC who will undergo testing: a person under 40 who returned from China and developed matching symptoms and tested negative to the seasonal flu.
  • Most US patients had recently visited Wuhan.
  • All of the first five U.S. cases have been described as mild.
  • A study on the first US case of novel coronavirus details mild symptoms followed by pneumonia

U.S. Airlines suspending ALL flights between the U.S. and China

On Friday, January 31, Delta, American and United announced they will temporarily suspend all of their mainland China flights in response to the coronavirus outbreak.[14]

Prior to this January 31 announcement:

    on Jan. 28 had announced it would cut 24 flights between the U.S. and China for the first week of February.
    on Jan. 29 had announced it would suspend flights from Los Angeles to Shanghai and Beijing from Feb. 9 through March 27, 2020. It will maintain its flight schedules (10 daily A/R) from Dallas-Fort Worth to Shanghai and Beijing, as well as from Los Angeles and Dallas-Fort Worth to Hong Kong.
    had not adjusted its schedule of direct flights from the U.S. to China. It is the only airline with direct flights to not take action so far.
The White House was considering issuing a ban on flights between the United States and China, as of late Jan. 28[11]. Italy has announced on January 31 that it was suspending all flights to and from China following the first 2 cases of coronavirus in Italy.

Travel Alert: Do Not Travel to China

  • The U.S. State Department on January 30 issued a Level 4: Do Not Travel to China Alert [4] (the highest level of alert).
  • Previously, on January 29, the advisory was set at a lower "Level 3: Reconsider Travel" advising not to travel to Hubei Province: (Level 4) and reconsider travel to the remainder of China (Level 3).
  • The CDC on Jan. 28 issued a Level 3 Warning, recommending that travelers avoid all nonessential travel to China [5].

Screening incoming passengers at 20 airports in the U.S.

On January 17, the CDC announced that 3 airports in the United States would begin screening incoming passengers from China: SFO, JFK, and LAX [6] Other 2 airports were added subsequently, and on January 28, the U.S. Department of Health and Human Services (HHS) announced that 15 additional U.S. airports (bringing the total to 20) would begin screening incoming travelers from China.

Below is the complete list of airports where screening for the 2019 Novel Coronavirus (2019-nCoV) is in place:

  • Los Angeles International (LAX)
  • San Francisco International (SFO)
  • Chicago O'Hare
  • New York JFK
  • Atlanta Hartsfield-Jackson International
  • Houston George Bush Intercontinental 
  • Dallas-Fort Worth International
  • San Diego International
  • Seattle-Tacoma International
  • Honolulu International
  • Anchorage Ted Stevens International
  • Minneapolis-St. Paul International
  • Detroit Metropolitan
  • Miami International
  • Washington Dulles International
  • Philadelphia International
  • Newark Liberty International
  • Boston Logan International
  • El Paso International
  • Puerto Rico's San Juan Airport

Useful info

Novel Coronavirus Worldometer Sections:


  1. Novel Coronavirus (2019-nCoV) situation reports - World Health Organization (WHO)
  2. 2019 Novel Coronavirus (2019-nCoV) in the U.S -. U.S. Centers for Disease Control and Prevention (CDC)
  3. Symptoms of Novel Coronavirus (2019-nCoV) - CDC
  4. China Travel Advisory - U.S. State Department, accessed January 31, 2020.
  5. Novel Coronavirus in China - Warning - Level 3, Avoid Nonessential Travel - CDC, January 28, 2020.
  6. Public Health Screening to Begin at 3 U.S. Airports for 2019 Novel Coronavirus (“2019-nCoV”) - CDC January 17, 2020
  7. First Travel-related Case of 2019 Novel Coronavirus Detected in United States - CDC, January 21, 2020
  8. Second Travel-related Case of 2019 Novel Coronavirus Detected in United States - CDC, January 24, 2020
  9. CDC confirms additional cases of 2019 Novel Coronavirus in United States - CDC, January 26, 2020
  10. 2019 Novel Coronavirus (2019-nCoV) in the U.S. - CDC, Updated January 29, 2020
  11. White House considers ban on flights to China amid coronavirus outbreak - USA Today, Jan. 28, 2020
  12. CDC Confirms Person-to-Person Spread of New Coronavirus in the United States - CDC Press Release, Jan. 30, 2020
  13. NYC Officials Deny Report Of Coronavirus Amid Confusion - Forbes, Jan. 31, 2020
  14. Delta, American, United to suspend all China mainland flights as coronavirus crisis grows - USA Today, Jan. 31, 2020
  15. Secretary Azar Declares Public Health Emergency for United States for 2019 Novel Coronavirus - U.S. Department of Health and Human Services (HHS), Jan. 31, 2020
  16. Man returning from Wuhan, China is first case of 2019 Novel Coronavirus confirmed in Massachusetts - Massachusetts Department of Public Health, Feb. 1, 2020
  17. County of Santa Clara Public Health Department Reports First Case of Novel (new) Coronavirus - Santa Clara County Public Health, Jan. 31, 2020
  18. Coronavirus: First case confirmed in Santa Clara County - Mercury News, Jan. 31. 2020