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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: 44388

Reported Deaths: 675
CountyConfirmedDeaths
Multnomah9653167
Washington608278
Marion6068109
Umatilla346145
Clackamas330966
Lane250127
Malheur196738
Jackson18657
Deschutes120913
Yamhill102515
Linn86316
Polk67515
Jefferson60910
Morrow5547
Lincoln51913
Union4872
Benton4646
Klamath4313
Douglas3738
Wasco35216
Hood River2861
Columbia2751
Josephine2733
Coos2621
Clatsop2510
Baker1433
Crook1162
Tillamook750
Curry581
Wallowa512
Lake470
Harney370
Sherman220
Gilliam120
Grant120
Wheeler10
Unassigned00

California Coronavirus Cases

Data is updated nightly.

Confirmed Cases: 928028

Reported Deaths: 17618
CountyConfirmedDeaths
Los Angeles3063277056
Riverside680501319
San Bernardino643671074
Orange597181475
San Diego56369888
Kern34154422
Fresno31321443
Sacramento26018500
Santa Clara24867406
Alameda23775463
San Joaquin21994492
Contra Costa18981246
Stanislaus17872401
Tulare17800292
Ventura14486166
Imperial13038338
San Francisco12320147
Monterey1161695
San Mateo11341161
Santa Barbara9919126
Sonoma9646136
Merced9623155
Kings850283
Solano763476
Marin7121127
Madera509476
Placer435359
San Luis Obispo426532
Yolo326660
Butte314353
Santa Cruz286125
Shasta204631
Napa200916
Sutter189712
San Benito146115
El Dorado13804
Yuba134610
Mendocino115621
Tehama9259
Lassen7721
Lake70417
Glenn6823
Nevada6358
Humboldt57110
Colusa5556
Calaveras34721
Amador33816
Tuolumne2886
Inyo24115
Siskiyou2210
Mono1822
Del Norte1811
Mariposa812
Plumas790
Modoc480
Trinity280
Alpine80
Sierra60
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