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. 2021 Jan 8;18(2):479. doi: 10.3390/ijerph18020479
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Heart disease
Neurologic disease (epilepsy)
Diabetes Mellitus
Liver disease
Kidney disease
Cancer
Respiratory disorder (lung disease, COPD, asthma...)
Transplantation recipient
Guillain-Barre Syndrome
Anaphylactic allergies (swelling of mouth and difficulty breathing)
3 months or more of continuous steroid use
Other (please specify)