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Tinglong Dai

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Associate Professor of Operations Management & Business Analytics, Johns Hopkins Carey Business School, Johns Hopkins University School of Nursing
The concern is about more than one shot vs. two. Michael Ciaglo/Getty Images

Backlash against Johnson & Johnson’s COVID-19 vaccine is real and risky – here’s how to make its rollout a success

Tinglong Dai, Johns Hopkins University School of Nursing; Christopher S. Tang, University of California, Los Angeles, and Ho-Yin Mak, University of Oxford

Religious opposition over a link to abortions performed decades ago and misunderstandings about effectiveness could lead to a nightmare of angry patients and wasted vaccine.
In some states, getting a COIVD-19 vaccination appointment has felt like winning the lottery. Irfan Khan/Los Angeles Times via Getty Images

How to really fix COVID-19 vaccine appointment scheduling

Tinglong Dai, Johns Hopkins University School of Nursing

Websites that crash. Appointments that fill up within seconds. Scheduling your COVID-19 vaccine shouldn't be this hard. A few states have found a better way.
A health system in Virginia stopped using the federal website after only a few days, complaining that it was slow and crashed. Michael S. Williamson/The Washington Post via Getty Images

The US government’s $44 million vaccine rollout website was a predictable mess – here’s how to fix the broken process behind it

Tinglong Dai, Johns Hopkins University School of Nursing

The website has triggered random appointment cancellations and unreliable sign-ups. Only one contractor was deemed qualified to build it – and it wasn't a major tech company. We've seen this before.
By mid-January, only about a quarter of the COVID-19 vaccines distributed for U.S. nursing homes through the federal program had reached people’s arms. Paul Bersebach/MediaNews Group/Orange County Register via Getty Images

The simple reason West Virginia leads the nation in vaccinating nursing home residents

Tinglong Dai, Johns Hopkins University School of Nursing

West Virginia's success holds some important lessons for other states and the rest of the COVID-19 vaccine rollout.
Efficient shipping and storage could prevent a lot of wasted vaccines. AP Photo/Morry Gash, Pool

What vaccine distribution planners can learn from Amazon and Walmart

Tinglong Dai, Johns Hopkins University School of Nursing and Christopher S. Tang, University of California, Los Angeles

COVID-19 vaccines have very specific storage requirements that make shipping a difficult task. Two ideas – fulfillment centers and cross-docking – could help overcome some distribution challenges.
The airline industry has been cancelling routes because of the traffic drop-off during the pandemic. That has an impact on organ transplants. Michael Ciaglo/Getty Images

How the airline industry recovers from COVID-19 could determine who gets organ transplants

Tinglong Dai, Johns Hopkins University School of Nursing; Guihua Wang, University of Texas at Dallas, and Ronghuo Zheng, University of Texas at Austin

As policymakers weigh financial aid for the airline industry, they have an opportunity to help make the US organ transplantation system more equitable at the same time.