Several virus strains have garnered significant attention due to their impact on public health:
SARS-CoV-2: The virus responsible for COVID-19, with notable variants such as Alpha, Beta, Delta, and Omicron, each exhibiting different characteristics affecting transmission and vaccine efficacy. Influenza Virus: Known for its frequent genetic shifts and drifts, leading to seasonal flu epidemics and occasional pandemics, such as the H1N1 pandemic in 2009. HIV: Displays high genetic variability, complicating vaccine development and treatment approaches.
