With multiple vaccines now available and vaccination efforts underway around the world, there may be hope that the COVID-19 pandemic could end soon. Why, then, are cruises still being canceled, even months before their sailing dates? The Evolution of a Pandemic While there is progress and hope in the fight against the coronavirus pandemic, it is critical to understand that pandemics evolve just like the diseases that cause them. As the COVID-19 virus mutates into new strains, additional research must be conducted to ensure that treatment measures, medications, and vaccines can remain effective against each strain. Even while that research...