Which of the following chemical is used in the processing of anti-polio vaccine?

اینٹی پولیو ویکسین کی پروسیسنگ میں مندرجہ ذیل میں سے کون سا کیمیکل استعمال ہوتا ہے؟

Formaldehyde

Ethyl acetate

Methanol

None of these

Formaldehyde is used to inactivate the poliovirus in the production of the inactivated polio vaccine (IPV).

This ensures the virus is non-infectious while still triggering an immune response.