Frequently Asked Questions About Covid-19 Vaccines

COVID-19 Vaccine Update – June 1, 2021

Alabama Oncology is now able to administer the Moderna COVID-19 vaccine to our patients.  We strongly encourage our patients to get the vaccine where and when it is available. Patients should discuss getting vaccinated with their physician.  We will notify patients and administer vaccines on a case-by-case basis, according to CDC and state guidelines.

Please visit the ADPH COVID-19 Vaccination Portal  website for more information on the COVID-19 vaccine.

As of May 13, 2021, people age 12 and older are eligible to receive the COVID-19 vaccine in Alabama. The Pfizer vaccine is the only COVID-19 vaccine currently authorized for ages 12 and older.  Alabama Oncology is only administering the Moderna vaccine, which is authorized for ages 18 and older. 

Beginning April 5, the Alabama Department of Public Health will extend eligibility for COVID-19 vaccinations to include individuals age 16 and older. The Pfizer vaccine is available to individuals age 16 and up, and the Moderna and Johnson & Johnson vaccines are both available to individuals 18 years of age and older.

As of March 22, 2021, ADPH extended eligibility for COVID-19 vaccinations to include people age 55 and older, people with intellectual and developmental disabilities, and the population defined as Allocation Phase 1c in the Alabama COVID‐19 Vaccination Allocation Plan which includes people age 16 to 64 with high-risk medical conditions which include but are not limited to the following conditions:

  • Cancer
  • Chronic kidney disease
  • COPD
  • Heart conditions such as HF,
  • CAD
  • Solid organ transplant
  • Obesity, BMI greater than 30
  • Pregnancy
  • Sickle cell disease
  • Smoking
  • Type 1 and 2 diabetes
  • Other medical conditions as
  • determined by your medical 
  • provider

Also, critical workers in the following areas who were not recommended for vaccination in Phase 1b will be eligible:

  • Transportation and logistics
  • Waste and wastewater
  • Food service (includes
  • restaurant staff)
  • Shelter and housing
  • (construction)
  • Finance (bank tellers)
  • Information technology and
  • Communication

We have compiled a list of frequently asked questions about COVID-19 vaccines. This information is generally available to all individuals seeking information about the available vaccines regardless of pre-existing health conditions. In addition to the FAQ’s, we’ve also provided helpful links to more comprehensive information. You can visit ADPH Vaccine FAQ Page for additional frequently asked questions and answers.

Specific information for cancer patients and the COVID-19 vaccines is also available from the American Society of Clinical Oncology (ASCO).


Which vaccines are available?

At this time, two vaccines have been approved by the United States Food and Drug Administration (FDA) Emergency Use Authorization (EUA). Vaccine availability in particular areas will depend on a number of factors, including availability in the state and region as well as vaccine storage capabilities. General information published about each vaccine includes:

  • The Pfizer-BioNTech vaccine: Contains a tiny fragment of the virus’s genetic code made in the lab – called messenger RNA, or mRNA – that codes for a part of the virus called the ‘spike protein’, which sits on the outside of the virus. When the mRNA is injected into the body it can instruct cells to produce these proteins, priming the immune system to be able to recognize and destroy the coronavirus, without exposing the body to the virus itself. This vaccine must be stored at -70°C (-94 oF). This vaccine received FDA EUA approval on December 11, 2020.
  • Moderna vaccine: Like the Pfizer-BioNTech vaccine, the Moderna vaccine contains mRNA that codes for the virus’s spike protein. It can be stored at –20°C (-4oF; normal freezer temperature) for up to 6 months. This vaccine received FDA EUA approval on December 17, 2020.
  • Multiple COVID-19 vaccines are also still under development. Large-scale (Phase 3) clinical trials are in progress or being planned for two additional COVID-19 vaccines in the United States.

Which vaccine is most appropriate?

All vaccines that are approved by the FDA may be used depending on availability. Please speak with your healthcare provider about which vaccine is appropriate for you.

Is the vaccine effective against COVID-19?

Detailed information about each vaccine’s effectiveness is available from the respective manufacturers, the FDA and the CDC. Based on clinical trials reviewed by the FDA:

  • The Pfizer vaccine is 95% effective 7 days from the second dose.
  • The Moderna vaccine is 94.5% effective 14 days from the second dose
  • Trial efficacy is based on rates of COVID-19 infection in the treatment vs placebo groups. Additional details regarding study design, outcomes, and secondary outcomes (e.g., positive antibody response) can be found using the reference links below:
  • Ongoing studies to assess how well the vaccine works in real-world conditions will continue.
    • Studies are also underway to clarify how long the vaccines will be effective.  
    • There is no currently recommended booster shot, but that may be considered in the future.

How do we know the vaccine is safe?

  • FDA EUA approval requires the same rigorous review of clinical trial data as any other FDA approval.
  • The Advisory Committee on Immunization Practices (ACIP) reviews all safety data before recommending any COVID-19 vaccine for use.
  • FDA: Emergency Use Authorization for Vaccines Explained
  • Studies included more than 50,000 people who received a vaccine, and they continue to be monitored for side-effects.

What are the common side effects?

Most people do not have serious problems after being vaccinated. Side effects may feel like flu and even affect your ability to do daily activities, but they should go away in a few days. Often times, people will have symptoms like mild fever, tiredness, and body aches after getting a vaccine. These symptoms are normal and signal your body’s immune response to the vaccine to help you prevent future infections.