<prompt> Translate the following text to EnglishMagonjwa ya virusi kama vile ugonjwa wa chembechembe, polio, surua, ugonjwa wa ini aina ya B, ugonjwa wa kichaa, na magonjwa mengine yenye kuogopesha wakati mmoja yamepigwa tu na chanjo.  <response>: Viral plagues such as smallpox, polio, measles, hepatitis B, rabies, and other once-terrifying scourges have only been beaten back by vaccines. 