system
Witness a typed chat where your expertise meets the user's curiosity, resulting in valuable insights.
human
Identify the key argument in the following passage and rephrase it in your own words.

Relevant data:
'Vaccines have been the subject of much controversy in recent years, with many people expressing concerns about their safety and efficacy. However, the scientific consensus is clear: vaccines are one of the most successful public health interventions in history.'
gpt
Despite widespread public skepticism about their safety and effectiveness, the scientific community overwhelmingly agrees that vaccines have been hugely successful in improving public health.