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They contend that much smaller exhaled droplets can travel the length of a room and cause infection when inhaled.

Scientists Say New Coronavirus Can Linger in Indoor Air

MONDAY, July 6, 2020 (HealthDay News) -- The new coronavirus can linger in indoor air and infect people, 239 scientists in 32 countries say in an open letter to the World Health Organization that challenges the WHO's position on how the virus is spread.

The WHO says the virus is spread primarily by large respiratory droplets expelled by infected people in coughs and sneezes but that those droplets fall quickly to the floor instead of remaining in the air, The New York Times reported. But the scientists' letter contends that much smaller exhaled droplets can travel the length of a room through the air and cause infection when they are inhaled. They plan to publish their letter next week in a scientific journal.

If this type of airborne transmission plays a significant role in the pandemic, there are major implications, according to The Times. Masks may be required indoors, building ventilation systems may need to minimize recirculating air, ultraviolet lights may be required to kill airborne viral particles, and health care workers may need masks that filter out even the smallest respiratory droplets as they care for COVID-19 patients.

Read the full HealthDay story.

In our latest HealthDay Now interview, Mabel Jong spoke to Dr. G. Caleb Alexander, a professor at Johns Hopkins who served on the FDA advisory committee that nearly unanimously advised against approving Biogen's new Alzheimer's drug. Dr. Alexander shared his thoughts on the drug's highly uncertain efficacy and discussed whether the FDA's reputation has been permanently damaged by the controversial approval of the drug.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

HD Live! Videos

Two world-renowned medical groups — the European Hematology Association (EHA) and the International Conference on Malignant Lymphoma (ICML) — conducted virtual meetings this month to share advances in the care of blood-based cancers.

In our latest HealthDay Now, Dr. Joshua Richter, assistant professor of medicine at the Tisch Cancer Institute, gave insights on the EHA meeting. Then, Dr. Anastasios Stathis, an oncologist and a member of this year's ICML organizing committee, joined us to discuss ICML.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.


In our latest HealthDay Now, Mabel Jong spoke with Dr. Lori Pierce, president of the American Society of Clinical Oncology and a cancer radiation specialist at the University of Michigan.

Dr. Pierce shared important takeaways from the recently concluded 2021 ASCO annual meeting and discussed why equity was the chosen theme this year.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

In our latest HealthDay Now, Dr. Hina Talib, a pediatrician and adolescent health specialist at the Children's Hospital at Montefiore, debunks myths and common concerns parents may have about giving their children Pfizer's COVID-19 vaccine, which was recently approved for use in children and teens ages 12 and up.

HealthDay Now's Mabel Jong also speaks with Alan Santee, a high school freshman from Massachusetts, about why he didn't hesitate to get vaccinated, and Ethan Lindenberger, a 20-year-old vaccine advocate from Ohio, about his experience having a mom who is anti-vaccine and how kids and parents can approach these conversations.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now to hear about the state of mental health and why many people fear returning to their social and work lives.

HealthDay's Mabel Jong spoke to Dr. Vivian Pender, president of the American Psychiatric Association, and Sherry Amatenstein, a social worker and therapist who has been dealing with these anxieties herself.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now for a preview of the American College of Physicians Annual Meeting 2021, covering topics like the alarming shortage of primary care physicians, bringing basic health delivery needs to rural residents, and why the ACP will focus on privacy concerns at its conference.

HealthDay Now's Mabel Jong speaks with Dr. Jacqueline Fincher, president of the American College of Physicians and an internist in a rural community in Georgia.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now as we cover the latest on the Johnson & Johnson COVID-19 vaccine investigation. An independent advisory panel to the CDC is waiting on additional information before making recommendations on the use of the Johnson & Johnson COVID-19 vaccine after reports about rare blood clots.

Mabel Jong from our liveblog team speaks with Lynn Bahta, a member of the CDC's Advisory Committee on Immunization Practices (ACIP) and a clinical expert for vaccines at the Minnesota Department of Health.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now as we recap the highlights of the American Association for Cancer Research (AACR) Annual Meeting 2021.

Mabel Jong from our liveblog team speaks with Dr. Antoni Ribas, former president of the American Association for Cancer Research and professor of medicine at UCLA, and Anna Plym, PhD, a postdoctoral research fellow at Brigham and Women's Hospital.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.

Watch our latest HealthDay Now as we dive into the latest details on multisystem inflammatory syndrome in children (MIS-C).

Mabel Jong from our liveblog team speaks with Dr. Mary Beth Son, Program Director of Boston Children's Hospital's Rheumatology Program, and Brian Padla, father of James Padla, who has MIS-C.

Watch the in-depth discussion above, and see our past HealthDay Nows and other videos on our YouTube channel.