2022

"The new mask-optional phase of the pandemic fuels fears, and some cheers"


The Los Angeles Times interviewed Dr. Yifang Zhu and Dr. Robert Kim-Farley about the risks in dropping mask requirements aboard U.S. airliners.

Individual taking off mask

A new mask-optional phase of the pandemic is arriving, sparking concern from some experts that the shift is occurring too soon.

For months, local officials have been easing mask rules in public places, such as supermarkets and shopping malls. But a federal court ruling Monday striking down the federal mask-wearing order on public transportation systems accelerated the trend, with Uber, Lyft, many airlines and transit agencies making face coverings optional.

In one section of Los Angeles International Airport on Tuesday morning, an estimated 30% to 40% of travelers were not wearing masks.

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Faculty Referenced by this Article

Dr. Yifang Zhu
Yifang Zhu
Environmental Health Sciences
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Robert Kim-Farley
Robert J. Kim-Farley

Robert J. Kim-Farley, MD, MPH, is a Professor-in-Residence with joint appointments in the Departments of Epidemiology and Community Health Sciences

Community Health Sciences Epidemiology
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Dr. Brian Bradbury
Brian Bradbury
Epidemiology
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Sheena G. Sullivan
Epidemiology
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Dr. Liwei Chen
Liwei Chen

Professor in Epidemiology

Epidemiology
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Amy Wohl
Epidemiology
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Kelika Konda
Epidemiology
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Karin Michels
Karin B. Michels
Epidemiology
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Dawn Upchurch
Community Health Sciences
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Miriam Marlier
Miriam Marlier
Environmental Health Sciences
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Lisa V. Smith
Epidemiology
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Arabzadah, Hamid
Hamid Arabzadeh
Environmental Health Sciences
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Jian Yu Rao
Epidemiology
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Nathan Wong
Nathan D. Wong
Epidemiology
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Peter Katona
Epidemiology
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Dr. Jane Valentine
Jane Valentine
Environmental Health Sciences
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Philip Massey
Community Health Sciences
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Dr. Candace Tsai
Candace Tsai

Associate Professor for Industrial Hygiene and Environmental Health Sciences

Environmental Health Sciences
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Kimberley Shoaf
Community Health Sciences
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Paul Dluzniewski
Epidemiology
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Roch Nianogo
Roch A. Nianogo
Epidemiology
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Dr. Dvora Joseph Davey
Dvora Joseph Davey

Dr. Joseph Davey is an infectious disease epidemiologist with over 20 years' experience leading research on HIV/STI services for women and children.

Epidemiology
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Dr. Wendie Robbins
Wendie Robbins
Environmental Health Sciences
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Timothy Malloy
Environmental Health Sciences
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Jody Heymann
Jody Heymann
Epidemiology Health Policy and Management
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Dr. Marjan Javanbakht
Marjan Javanbakht
Epidemiology
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DerSarkissian, Maral
Maral DerSarkissian
Epidemiology
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Epidemiology
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Matthew Mimiaga
Matthew J. Mimiaga
Epidemiology
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Elizabeth Rose Mayeda
Epidemiology
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Mel Suffet
Irwin Suffet
Environmental Health Sciences
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Dr. Jessica Gipson
Jessica Gipson
Community Health Sciences
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Nicole Hoff
Epidemiology
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Catherine Carpenter
Epidemiology
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Michael Collins
Michael Collins
Environmental Health Sciences
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Jonathan Jacobs
Jonathan Jacobs
Epidemiology
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Richard J. Jackson
Richard J. Jackson
Environmental Health Sciences
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Dana Hunnes
Dana Hunnes
Community Health Sciences
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Hashibe, Mia
Mia Hashibe
Epidemiology
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Sung-Jae Lee
Sung-Jae Lee
Epidemiology
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Rosenstock
Linda Rosenstock
Environmental Health Sciences Health Policy and Management
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Christie Jeon
Epidemiology
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Dr. Beate Ritz
Beate Ritz
Environmental Health Sciences Epidemiology
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Ralph R. Frerichs, 12/25/21
Ralph R. Frerichs
Epidemiology
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Vonthanak Saphonn
Epidemiology
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Dr. Michael Rodriguez
Michael Rodriguez
Community Health Sciences
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Dr. Robert Schiestl
Robert Schiestl
Environmental Health Sciences
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Dr. Paul Hsu
Paul Hsu
Epidemiology
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Angie Otiniano Verissimo
Community Health Sciences
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Andre Nel
André Nel
Environmental Health Sciences
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Dr. Gilbert Gee
Gilbert C. Gee
Community Health Sciences
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Paul Simon Headshot
Paul Simon
Epidemiology
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Ilan H. Meyer
Ilan H. Meyer
Community Health Sciences
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Dr. Samuel Stratton
Samuel Stratton
Community Health Sciences
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Dena Herman
Dena Herman
Community Health Sciences
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Onyebuchi A. Arah
Epidemiology
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Charlotte Neumann
Charlotte G. Neumann
Community Health Sciences
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Sheba George
Community Health Sciences
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Dr. Randall Kuhn
Randall Kuhn
Community Health Sciences
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Michael Jerrett
Michael Jerrett
Environmental Health Sciences
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Courtney S. Thomas Tobin
Community Health Sciences
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Sarah Blenner
Sarah Blenner

Director of Field Studies and Applied Professional Training

Community Health Sciences
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Richard Ambrose
Richard Ambrose
Environmental Health Sciences
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Virginia C. Li
Virginia C. Li
Community Health Sciences
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Jesus Araujo
Environmental Health Sciences
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Dr. Michael Prelip
Michael Prelip
Community Health Sciences
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Dr. Chandra Ford
Chandra Ford
Community Health Sciences
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Jennifer A. Wagman
Jennifer A. Wagman
Community Health Sciences
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Annette Regan
Epidemiology
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Roberta Malmgren
Epidemiology
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Marissa J. Seamans
Marissa Seamans
Epidemiology
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Paula Tavrow
Paula Tavrow
Community Health Sciences
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Naomi Greene
Naomi Greene
Epidemiology
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Feng Gao
Feng Gao
Environmental Health Sciences
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James Macinko
James Macinko

Professor of Community Health Sciences & Health Policy and Management, and Associate Dean for Research

Community Health Sciences Health Policy and Management
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Lawrence Ash
Epidemiology
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Dr. Timothy Brewer
Timothy Brewer
Epidemiology
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Dr. Shira Shafir
Shira Shafir
Community Health Sciences Epidemiology
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Frank J. Sorvillo
Epidemiology
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Dr. Pouran D. Faghri
Pouran D. Faghri
Environmental Health Sciences
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Jørn Olsen
Epidemiology
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Otoniel Martinez-Maza
Otoniel Martinez-Maza
Epidemiology
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Dr. Elizabeth Yzquierdo
Elizabeth Yzquierdo
Community Health Sciences
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Teresa Ellen Seeman
Epidemiology
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Sander Greenland
Sander Greenland
Epidemiology
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Dr. Lara Cushing
Lara Cushing
Environmental Health Sciences
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Dr. Dana Rose Garfin
Dana Rose Garfin
Community Health Sciences
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Kirsten Schwarz
Environmental Health Sciences
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Dr. Oliver Hankinson
Oliver Hankinson

Dr. Hankinson is a Distinguished Professor of Pathology and Laboratory Medicine, and of EHS, and Chair of the Molecular Toxicology IDP

Environmental Health Sciences
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Dr. Daniel Uslan
Daniel Uslan
Environmental Health Sciences
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Dr. Roger Detels
Roger Detels
Epidemiology
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Julia Heck
Julia Heck
Epidemiology
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Dr. Anne Pebley
Anne Pebley
Community Health Sciences
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Ondine S. von Ehrenstein
Community Health Sciences Epidemiology
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Niklas Krause
Environmental Health Sciences Epidemiology
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Alexandra Binder Headshot
Alexandra Binder
Epidemiology
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Dr. Judith M. Siegel
Judith M. Siegel
Community Health Sciences
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Haroutune Armenian
Haroutune Armenian
Epidemiology
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Noel Weiss
Epidemiology
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May Wang headshot
May C. Wang
Community Health Sciences
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Dr. Alina Dorian
Alina Dorian
Community Health Sciences
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Rachael Jones
Rachael Jones
Environmental Health Sciences
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Aziz, Najib headshot_2023
Najib Aziz
Epidemiology
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Pamina Gorbach
Pamina Gorbach
Epidemiology
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Su Yong Jung
Su Yon Jung
Epidemiology
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Angelo J Bellomo
Angelo Bellomo
Environmental Health Sciences
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Nicole Green
Environmental Health Sciences
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Natalie Muth
Community Health Sciences
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Nina Harawa
Epidemiology
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Bo-Kyung Elizabeth Kim
Community Health Sciences
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Dallas Swendeman
Epidemiology
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Ximena Vergara
Ximena Vergara
Epidemiology
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Dr. Donald Morisky
Donald E. Morisky
Community Health Sciences
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Dr. Elizabeth D'Amico
Elizabeth D’Amico
Community Health Sciences
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David Eisenman
David Eisenman
Community Health Sciences
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Tony Kuo
Tony Kuo
Epidemiology
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Jian Li
Jian Li
Environmental Health Sciences Epidemiology
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Jared Diamond
Jared Diamond
Environmental Health Sciences
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Kamyar Kalantar-Zadeh
Kamyar Kalantar-Zadeh
Epidemiology
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Curtis Eckhert
Curtis Eckhert
Environmental Health Sciences
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Dr. Kevin Njabo
Kevin Njabo
Environmental Health Sciences
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Dr. Zuo-Feng Zhang
Zuo-Feng Zhang
Epidemiology
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Brian Cole
Brian Cole
Environmental Health Sciences
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Tao Huai
Tao Huai
Environmental Health Sciences
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Leeka I. Kheifets
Epidemiology
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Dr. Michael Goldstein
Michael Goldstein
Community Health Sciences
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Bailley, Julia
Julia Bailey
Epidemiology
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Dr. Shane Que Hee
Shane Que Hee

Industrial Hygiene & Analytical Chemistry

Environmental Health Sciences
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Arthur Cho
Arthur Cho
Environmental Health Sciences
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Anne Coleman
Anne Coleman
Epidemiology
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Wendelin Slusser
Community Health Sciences
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Dr. Anne Rimoin
Anne Rimoin
Epidemiology
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Dr. Hiram Beltrán-Sánchez
Hiram Beltrán-Sánchez
Community Health Sciences
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Susan Cochran
Susan Cochran
Epidemiology
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glik, deborah
Deborah Glik
Community Health Sciences
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halbert, ronald
Ronald Halbert
Community Health Sciences
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Marjorie Kagawa-Singer
Marjorie Kagawa-Singer
Community Health Sciences
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Kimberly Gregory
Kimberly Gregory
Community Health Sciences
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Peter R. Kerndt
Epidemiology
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Akihiro Nishi Headshot
Akihiro Nishi
Epidemiology
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Arthur Winer
Environmental Health Sciences
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Dr. May Sudhinaraset
May Sudhinaraset
Community Health Sciences
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Cathy Lang
Cathy Lang

Assistant Dean for Research & Adjunct Associate Professor of Community Health Sciences

Community Health Sciences
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Pablo Cicero-Fernandez
Pablo Cicero-Fernandez
Environmental Health Sciences
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