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COVID-19 Vaccination for NCCS Patients

Vaccination guidelines for people with cancer

According to the latest Ministry of Health guidelines (as of 31 May 2021), COVID-19 vaccination is recommended for cancer patients, including those on active cancer treatment.

All the categories below apply specifically to mRNA-based COVID-19 vaccines (i.e. Pfizer-BioNTech and Moderna COVID-19 vaccines), based on data currently available. These recommendations may change as more data becomes available locally and globally.

Allow Vaccination

​Active cancer not on treatment with chemotherapy, radiotherapy or immunotherapy CAN be vaccinated at any National Vaccination Centre.

Active cancer not on treatment is defined as:

a) Not on any treatment in the past 3 months AND

b) No planned treatment in the next 2 months.

​Persons on cancer hormonal therapy CAN be vaccinated at any National Vaccination Centre.
​Persons with a history of cancer, who are in remission, CAN be vaccinated at any National Vaccination Centre.

​Persons on active cancer treatment:

  • Chemotherapy
  • Radiation therapy or
  • Immunotherapy

CAN be considered for vaccination, after assessment by their primary oncologist on the eligibility of receiving mRNA-based COVID-19 vaccines. The vaccine should be administered in a hospital setting, arranged by the treating specialist.


If you are a NCCS patient, there are two ways to get the COVID-19 vaccination:

i) If you are currently NOT on active cancer treatment with chemotherapy, radiation therapy or immunotherapy, you should register for vaccination at National Vaccination Centres as part of the national COVID-19 vaccination programme.

Patients who are only on endocrine therapy, can also register for vaccination at any National Vaccination Centre.

ii) If you ARE CURRENTLY on active cancer chemotherapy, radiation therapy or immunotherapy (OR have received these treatments in the past 3 months or plan to receive these treatments in the next 2 months), and wish to be vaccinated, please seek your doctor’s advice at your next NCCS outpatient clinic consultation. Your doctor will discuss with you the risk and benefits of COVID-19 vaccination while you are on active cancer treatment and assess your eligibility to have the vaccination based on your clinical condition. If assessed to be eligible and you wish to proceed with vaccination, your doctor will register you for vaccination at SGH Vaccination Clinic.

Frequently Asked Questions

  1. Why is the COVID-19 vaccination now being recommended for cancer patients, including those currently on active cancer treatment?

    In Singapore, the Ministry of Health, Chapters of Medical Oncologists & Radiation Oncologists and College of Physicians of the Academy of Medicine, recommend that cancer patients, including those who are currently on active cancer treatment, should get COVID-19 vaccination. This is in line with international guidelines from organisations such as the American Society of Clinical Oncology and the European Society for Medical Oncology.

    This is because cancer patients are at increased risk of severe complications from COVID-19 infection. Vaccination protects cancer patients against COVID-19 infection and can reduce the risk of severe complications, should infection occur.

    In addition to vaccination, which is an important measure, patients should strictly adhere to safe management measures, such as wearing a face mask, frequent handwashing with soap, safe distancing, only going out for essentials, using TraceTogether and seeking prompt medical attention if feeling unwell.

  2. How do we know that COVID-19 vaccines are safe for cancer patients?

    There is currently no evidence of any safety signals or increased rates of adverse events from mRNA-based COVID-19 vaccines for cancer patients.


  3. What are the risks and benefits of getting COVID-19 vaccination?

    Cancer patients are at increased risk of severe complications from COVID-19 infections. Vaccination protects patients against COVID-19 infection and can reduce the risk of severe complications, should infection occur.

    Please seek your doctor’s advice at your next NCCS outpatient clinic consultation. Your doctor will discuss with you the risk and benefits of COVID-19 vaccination while you are on active cancer treatment and assess your eligibility to have the vaccination based on your clinical condition.

  4. How should I get COVID-19 vaccination if I am currently on active cancer treatment?

    At your next NCCS outpatient clinic consultation, please consult your doctor about COVID-19 vaccination. Your doctor will discuss with you the risk and benefits of COVID-19 vaccination while on active cancer treatment and assess your eligibility to have the vaccination based on your clinical condition. If assessed to be eligible and you wish to proceed with vaccination, your doctor will register you for vaccination at SGH Vaccination Clinic.

  5. Can I get my vaccination on the same day as my clinic appointment?

    Vaccination appointments must be booked in advance to ensure that the vaccine is available for you. As slots are pre-booked, you may not be able to obtain an appointment on the same day.

  6. Should I be vaccinated at a National Vaccination Centre or ask my doctor to schedule me for vaccination at SGH Vaccination Clinic?

    If you are currently NOT on active cancer treatment with chemotherapy, radiation therapy or immunotherapy, you should register for vaccination at National Vaccination Centres as part of the national COVID-19 vaccination programme.

    If you ARE CURRENTLY on active cancer chemotherapy, radiation therapy or immunotherapy (OR have received these treatments in the past 3 months or plan to receive these treatments in the next 2 months), and wish to be vaccinated, please seek your doctor’s advice at your next NCCS outpatient clinic consultation. Your doctor will discuss with you the risk and benefits of COVID-19 vaccination while on active cancer treatment and assess your eligibility to have the vaccination based on your clinical condition. If assessed to be eligible and you wish to proceed with vaccination, your doctor will seek your consent and will register you for vaccination at SGH Vaccination Clinic.

  7. Can I get a doctor’s memo to certify me fit for COVID-19 vaccination at the National Vaccination Centre?

    Patients are not required to have a doctor’s memo to certify them fit for COVID-19 vaccination. Screening will be done by the vaccination team on-site to assess if you are eligible for vaccination.

    However, patients with cancer and on active chemotherapy, radiation therapy or immunotherapy (OR have received these treatments in the past 3 months or plan to receive these treatments in the next 2 months) are required to seek their doctor’s advice at their next NCCS outpatient clinic consultation. Your doctor will discuss with you the risk and benefits of COVID-19 vaccination while on active cancer treatment and assess your eligibility to have the vaccination based on your clinical condition. If assessed to be eligible and you wish to proceed with vaccination, your doctor will register you for vaccination at SGH Vaccination Clinic.

  8. Can I choose which COVID-19 vaccine I take?

    National Vaccination Centres and SGH Vaccination Clinic will use either the Pfizer-BioNTech or Moderna COVID-19 vaccines, which are approved by MOH. Each vaccination site will only administer one type of COVID-19 vaccine.

  9. Can dose 1 and dose 2 of the vaccination be done at different places e.g. #1 at SGH Vaccination Clinic and #2 at a National Vaccination Centre?

    At the point of enrolment, appointments will be made for dose 1 and dose 2 at the same location.

    As different vaccination centres may use different types of the COVID-19 vaccine, you should return to the same vaccination centre for both doses of the vaccine. Hence, if you have your first dose of the COVID-19 vaccination at SGH Vaccination Clinic, please return there for your pre-booked appointment for your second dose.

  10. What should I do if I have my first dose of the vaccination at SGH Vaccination Clinic and I then receive an official letter to go to the National Vaccination Centre for vaccination?

    If you have your COVID-19 vaccination scheduled at SGH Vaccination Clinic and subsequently receive a letter/SMS inviting you for vaccination at a National Vaccination Centre, you do not need to respond to the letter/SMS. All COVID-19 vaccination records will be captured in the National Immunisation Registry, regardless of where you received your COVID-19 vaccination.

  11. Can members of the public choose NCCS for their vaccination?

    NCCS is only offering COVID-19 vaccination to medically eligible patients who are currently receiving treatment at NCCS. It is not open to other members of the public.

    All Singaporeans and long-term residents will be offered COVID-19 vaccination based on the rollout timing of the national COVID-19 vaccination programme.

  12. Will I get a vaccination certificate?

    A printed card will be given to you after your first and second vaccinations. In addition, you can access your vaccination records via Singpass online on Health Hub.

    Healthcare professionals (e.g. doctors at the hospitals, polyclinics and GPs) taking care of you can access your vaccination records through the National Electronic Health Records (NEHR) system.

  13. Can the family members who are with me get the injection at the same time?

    No, NCCS can only arrange COVID-19 vaccination for our medically eligible cancer patients who are currently receiving treatment at NCCS.

    All Singaporeans and long-term residents will be offered COVID-19 vaccination based on the rollout timing of the national COVID-19 vaccination programme.

  14. What if I say “no” now and change my mind later, can I choose to have my vaccination at SGH Vaccination Clinic?

    If you change your mind, please make an appointment to see your doctor at NCCS, so that you can be scheduled for the vaccination at SGH Vaccination Clinic.

  15. Although I am a patient of NCCS located at the SGH Campus, I live near another public healthcare institution. Can you arrange for me to have my vaccination at that public healthcare institution?

    If you are currently NOT on active cancer treatment with chemotherapy, radiation therapy or immunotherapy, you should register for vaccination at National Vaccination Centres as part of the national COVID-19 vaccination programme.

    If you ARE CURRENTLY on active cancer chemotherapy, radiation therapy or immunotherapy (OR have received these treatments in the past 3 months or plan to receive these treatments in the next 2 months), and wish to be vaccinated, please seek your doctor’s advice at your next NCCS outpatient clinic consultation. Your doctor will discuss with you the risk and benefits of COVID-19 vaccination while on active cancer treatment and assess your eligibility to have the vaccination based on your clinical condition. If assessed to be eligible and you wish to proceed with vaccination, your doctor will seek your consent and will register you for vaccination at SGH Vaccination Clinic.

    However, if you are a patient at NCCS Oncology @ SKH or NCCS Oncology Clinic @ CGH, you will be scheduled for vaccination at that location.

  16. I have my appointment date for vaccination at SGH Vaccination Clinic. How do I reschedule or cancel my appointment if I am not well or change my mind about vaccination?

    You can reschedule your appointment by calling our Appointment Centre at +65 6436 8088.

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