Table 1 Mechanisms involved in the pathogenesis of viral-induced parkinsonism.

From: COVID-19 and possible links with Parkinson’s disease and parkinsonism: from bench to bedside

Mechanism

Type of neuronal damage

Virus tropism for basal ganglia, replication and subsequent neuronal lysis

Direct

Microglia activation and release of pro-inflammatory factors and T cell response

Indirect

Hypercytokinemia and loss of vascular integrity

Indirect

Hypoxic brain injury

Indirect