text: arre,tumne suna? vaccine development itni fast ho gayi hai, ab toh ek saal ke andar naya vaccine aa jaata hai, pehle yeh kaise hota tha?bilkul, mujhe bhi laga yeh kuch magic hai, lekin science ke advancement ki wajah se sab kuch possible ho gaya hai, ab toh hum safe feel karte hain!