Severe COVID-19 infection does not only bring about patient distress, but also increases public health expenditure in supportive devices such as ventilators. It is necessary to minimise the risk of COVID-19 infection in cancer patients, considering COVID-19 waves are likely to recur regularly and they are the high-risk groups. Personal hygiene measures and COVID-19 vaccination have been demonstrated to be efficacious and should be recommended to cancer patients for lowering the likelihood of hospitalisation, ICU admission and mortality.