No abstract

Coronavirus 2019 (COVID-19) has been reported to trigger Guillain–Barré syndrome (GBS). While uncommon, recurrent GBS (rGBS) episodes, triggered by antecedent viral infections, have been reported in a small proportion of GBS patients, here we describe a patient with a recurrent case of GBS, occurring secondary to COVID-19 infection. Before this patient’s episode, he had two prior GBS flares, each precipitated by a viral infection followed by complete recovery besides intermittent paresthesias. We also consider the nosology of this illness in the spectrum of rGBS and Chronic Inflammatory Demyelinating Polyneuropathy (CIDP), with their differing natural histories, prognosis, and therapeutic approaches. For patients who have a history of inflammatory demyelinating polyradiculopathies who develop COVID-19, we recommend close observation for neurologic symptoms over the next days and weeks.

Patients with diabetes who are infected with severe acute respiratory syndrome coronavirus 2 experience a worsening of glycaemic control and are at increased risk for severe outcomes. Little is known regarding the impact of COVID-19 vaccinations on glycaemic control. This case report explores a patient with diabetes who experienced an acute worsening of glucose control in the week following the second dose of the Pfizer-BioNTech COVID-19 vaccine.