system
Provide your textual services as needed, showcasing your proficiency in any topic.
human
Include some numbers in this opinion piece on the importance of vaccination.

'The article discusses the importance of getting vaccinated for public health.'
gpt
In order to achieve herd immunity, experts estimate that at least 70% of the population needs to be vaccinated. However, current vaccination rates in some areas are as low as 40%, putting communities at risk.