If a cancer patient or cancer survivor feels some early symptoms of covid-19, such as fever or cough, should they contact their medical oncologist or primary care physician?

PCP: It is generally preferable to start with your primary care provider. Wish you good health. https://www.cdc.gov/coronavirus/2019-ncov/faq.html https://www.who.int/emergencies/diseases/novel-coronavirus-2019 https://www.cdc.gov/coronavirus/2019-ncov/symptoms-testing/index.html#cdc-chat-bot-open

COVID 19: Most would likely start with primary care physician (especially if they are not undergoing specific cancer treatment at this time - like chemotherapy or radiation).