The Potential Role of Super Spread Events in SARS-COV-2 Pandemic; a Narrative Review.

Coronaviruses, members of family, cause extensive epidemics of vast diseases like severe acute respiratory syndrome (SARS) and Coronavirus Disease-19 (COVID-19) in animals and humans. Super spread events (SSEs) potentiate early outbreak of the disease and its constant spread in later stages. Viral recombination events within species and across hosts lead to natural selection based on advanced infectivity and resistance.

Aiming for the optimal bicarbonate prescription for maintenance hemodialysis therapy in end-stage renal disease.

Introduction: Acidemia and alkalemia, as a result of gradual depletion of the body's buffers followed by rapid repletion during hemodialysis (HD), are linked to adverse consequences. We examined the acid-base status with dialysis bath of higher bicarbonate (HC03 ) concentration or standard HC03 bath plus oral HC03 supplementation.

Methods: A total of 60 stable HD patients (pts) were evaluated according to their pre-dialysis acid-base status both before the first and the second session of the week dialyzed against standard base dialysate of 35 mmol/L.