In vespertilionid bats, including those in the genus Neoromicia, virus conspecific with MERS-CoV differs from human MERS-CoV, even if formally a member of the same species.
A bundle branch block is a delay or obstruction along the pathway that electrical impulses travel in your heart to make it beat. It is not an obstruction of blood flow in an artery or anywhere else. It indicates an âelectricalâ problem.
The underlying cause for bundle branch blocks may differ depending on whether the left or right bundle branch is affected. It's also possible that this condition can occur without any known underlying cause. Specific causes may include: Left bundle branch block. Heart disease; Thickened, stiffened or weakened heart muscle (cardiomyopathy) A viral or bacterial infection of the heart muscle (myocarditis) High blood pressure (hypertension) Right bundle branch block A heart abnormality that's present at birth (congenital) â such as atrial septal defect, a hole in the wall separating the upper chambers of the heart A heart attack (myocardial infarction)