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Abstract
Essential tremor (ET) is a common movement disorder, characterised by symptoms such as bilateral postural and kinetic tremor with prevalent manifestation in hands. The disease has chronic progressive development. In the case of continuous severe form it may resemble Parkinson's disease (PD) and sometimes comorbidity with PD is possible. Although both diseases have different pathogenesis and treatment, some tremor characteristics for both are similar, thus causing difficulties and mistakes in diagnosing. The aim of the research was to determine ET characteristics within the Latvian population to identify possible causes for making mistakes.

Cytomegalovirus chronic infection as a risk factor for stroke: a prospective study
Stroke is the second most common cause of death in the world and a major cause of long-term disability. Chronic infection is an independent risk factor for ischemic stroke and related forms of atherosclerotic vascular disease. The aim of our study was to compare the plasma Cytomegalovirus (CMV) immunoglobulin G antibody level in a patient and control group, and to determine the association of CMV chronic infection with ischemic stroke, and with stroke subtype. The present study does not present a cogent demonstration that cytomegalovirus chronic infection is a risk factor of stroke. Further studies are necessary to clarify the effective prophylactic measures to determine other significant risk factors for stroke.