Food and Drug Administration (FDA) authorized the use of “mix and match” booster doses on October 20, 2021. If you receive the Moderna vaccine for the first dose, you should also receive the Moderna vaccine for the second dose. If you receive the Pfizer vaccine for the first dose, you should also receive the Pfizer vaccine for the second dose. Mixing doses from the Moderna and Pfizer vaccines is not recommended. Globally, other vaccines are available or are in process of receiving Emergency Use Listing by the World Health Organization (WHO).įor COVID-19 vaccines that are 2-dose vaccines, both doses are recommended to ensure full vaccination. In the United States, the 3 vaccines in use are made by Pfizer BioNTech, Moderna, and Janssen, manufactured by Johnson & Johnson. There are several COVID-19 vaccines that are now in use in different parts of the world. Patients should talk with their oncologists and health care teams to discuss their options to protect themselves from infection. The American Society of Clinical Oncology (ASCO) is aware that people with cancer and cancer survivors, particularly those with compromised immune systems, are likely worried about the potential impact of COVID-19 on their health.

Markham is the Cancer.Net Associate Editor for Gynecologic Cancers and the past chair of ASCO's Cancer Communications Committee. She specializes in the treatment of gynecologic cancers. Merry Jennifer Markham, MD, FACP, FASCO, is Chief of the University of Florida (UF) Division of Hematology & Oncology, a Clinical Professor in the UF College of Medicine, and the Associate Director for Medical Affairs at the UF Health Cancer Center. It received the award of Distinction from the eHealthcare Awards in the Best COVID-19 Pandemic Related Communications category.

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