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WHO confirms there's 'emerging evidence' of airborne transmission of coronavirus

The World Health Organization confirmed there is "emerging evidence" of airborne transmission of the coronavirus...

Posted: Jul 8, 2020 6:51 AM

The World Health Organization confirmed there is "emerging evidence" of airborne transmission of the coronavirus following the publication of a letter Monday signed by 239 scientists that urged the agency to be more forthcoming about the likelihood that people can catch the virus from droplets floating in the air.

Dr. Benedetta Alleganzi, WHO Technical Lead for Infection Prevention and Control, said during a briefing Tuesday, that the agency has discussed and collaborated with many of the scientists who signed the letter.

"We acknowledge that there is emerging evidence in this field, as in all other fields regarding the Covid-19 virus and pandemic and therefore we believe that we have to be open to this evidence and understand its implications regarding the modes of transmission and also regarding the precautions that need to be taken," Alleganzi said.

Infectious disease epidemiologist Maria Van Kerkove, with WHO's Health Emergencies Program, said many of the letter's signatories are engineers, "which adds to growing knowledge about the importance of ventilation, which we feel is very important."

"We have been talking about the possibility of airborne transmission and aerosol transmission as one of the modes of transmission of Covid-19, as well as droplet. We've looked at fomites. We've looked at fecal oral. We've looked at mother to child. We've looked at animal to human, of course as well," Van Kerkove said.

She said the agency is working on a scientific brief summarizing the current knowledge around transmission of the deadly virus, which should be available in the coming weeks.

Alleganzi emphasized more research is still needed on Covid-19 transmission.

"So, these are fields of research that are really growing and for which there is some evidence emerging but is not definitive," she said.

"And therefore, the possibility of airborne transmission in public settings, especially in very specific conditions crowded, closed, poorly ventilated settings that have been described cannot be ruled out. However, the evidence needs to be gathered and interpreted."

Oregon Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 19978

Reported Deaths: 338
CountyConfirmedDeaths
Multnomah460893
Washington292124
Marion275568
Umatilla214126
Clackamas146438
Malheur71512
Deschutes5558
Lane5403
Jackson4211
Lincoln4149
Yamhill40412
Union3922
Jefferson3323
Morrow3272
Polk30112
Linn26310
Klamath2001
Hood River1780
Wasco1723
Benton1626
Douglas1401
Josephine1082
Coos890
Columbia860
Clatsop830
Crook421
Baker360
Tillamook340
Lake320
Wallowa191
Curry140
Sherman140
Harney100
Gilliam40
Grant20
Unassigned00
Wheeler00

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 530606

Reported Deaths: 9808
CountyConfirmedDeaths
Los Angeles1981654827
Riverside38487738
Orange38131665
San Bernardino34237487
San Diego30516568
Kern21433152
Fresno15945157
Alameda12136193
San Joaquin12034187
Santa Clara11030192
Sacramento10174148
Tulare10078193
Imperial9513232
Stanislaus9308135
Contra Costa8324131
Ventura787777
San Francisco708162
Santa Barbara652664
San Mateo5758120
Marin518076
Monterey496634
Merced458351
Kings445356
Solano380638
Sonoma320842
Madera211432
Placer199819
San Luis Obispo197016
Yolo161442
Santa Cruz11964
Butte10128
Napa10079
Sutter8406
San Benito6894
El Dorado6681
Lassen6320
Yuba5334
Shasta4049
Colusa3594
Glenn3462
Mendocino3419
Nevada3161
Tehama2491
Humboldt2454
Lake2111
Mono1461
Tuolumne1442
Amador1370
Calaveras1361
Del Norte900
Siskiyou880
Inyo661
Mariposa592
Plumas330
Trinity50
Modoc40
Sierra30
Alpine20
Unassigned00
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