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A cluster of coronavirus cases in California was traced to a coughing patient at a birthday party

A birthday party was behind a cluster of coronavirus cases in Pasadena, California, according to health officials.

Posted: May 10, 2020 3:21 PM
Updated: May 11, 2020 10:54 AM

(CNN) -- A birthday party was behind a cluster of coronavirus cases in Pasadena, California, according to health officials.

A "large number" of extended family members and friends were at the party, the Pasadena Public Health Department said in a news release, adding the event took place after the city issued a stay-at-home order in March.

One patient at the party was coughing and not wearing a face covering, health officials said, and other party guests were also not covering their face or social distancing.

"She was joking with people at the birthday party," Lisa Derderian, a spokeswoman for Pasadena, said of the woman who was coughing. "She said I may have Covid-19, and lo and behold, she did."

"It was selfish behavior that could have been avoided," Derderian told CNN.

Through contact tracing, investigators were able to confirm five Covid-19 cases traced to the party, all Pasadena residents.

"But we think five or six more party guests who live outside Pasadena May have been infected, because they showed symptoms of the virus," Derderian said. "They need to quarantine and eventually be tested."

"This is an example of how good contact tracing can identify disease clusters and tell us more about the spread of disease in our community," said Dr. Matthew Feaster, an epidemiologist with the department.

More than 66,550 people have been infected with the virus in California and at least 2,687 have died, according to Johns Hopkins University.

California was the first state to implement a stay-at-home order for its nearly 40 million residents on March 19, closing nonessential services and asking residents to stay home and maintain social distancing.

Pasadena officials issued a similar order. Essential businesses that remained open needed to practice social distancing, keep people 6 feet apart and provide access to hand washing, among other requirements.

California is now in the midst of a phased reopening and allowed some businesses like retailers, manufacturers and warehouses to reopen beginning Friday. Offices, gyms, restaurant dine-in service, malls, museums, salons and bars remain closed.

"Although we are moving forward with small modifications to the Safer at Home Order, gatherings of people who do not live in the same household are still prohibited," Dr. Ying-Ying Goh, director and health officer of the department, said. "The virus remains highly contagious. Social distancing, frequent hand washing, and wearing face coverings remain our best defenses against the further spread of Covid-19 in our community."

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 101050

Reported Deaths: 3895
CountyConfirmedDeaths
Los Angeles487612201
Riverside7139303
San Diego6882249
Orange5646136
San Bernardino4567176
Alameda304993
Santa Clara2688140
San Francisco240840
San Mateo196382
Kern194136
Tulare179679
Santa Barbara160412
Fresno153526
Contra Costa137537
Imperial135224
Sacramento131956
Ventura101732
San Joaquin77133
Kings6983
Stanislaus67028
Sonoma5244
Solano49920
Monterey4298
Marin42014
Merced2737
San Luis Obispo2631
Santa Cruz2052
Yolo20022
Placer1949
Napa1093
Humboldt982
Madera902
El Dorado800
San Benito762
Sutter422
Nevada411
Butte400
Del Norte400
Shasta374
Mono351
Yuba281
Mendocino230
Lake190
Inyo191
Mariposa161
Calaveras150
Glenn130
Amador100
Siskiyou61
Colusa50
Tuolumne40
Plumas40
Lassen40
Tehama41
Alpine20
Trinity10
Sierra10
Unassigned00
Chico
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Oroville
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Paradise
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Chester
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Red Bluff
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Willows
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Today a heat wave continues but tomorrow night rain moves in, lasting into Saturday with much cooler temperatures. We warm up again on Tuesday.
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