DIFFERENCE BETWEEN VACCINES AND SERA

[@poshitabaghel9611]

Excellent explanation in a very easy way👏👏

[@vickymorya350]

Excellent ❤

[@santoshchouhan1531]

Thoda voice clear hota to achaa hota

[@vishalkumarsaini01]

Thankyou sir ❤️❤️

[@gulsnober1029]

Thank u so much sir

[@mukeshverma-ui2ov]

Thank you sir ji

[@ayaanansari7705]

Thank you sir 😇😇

[@id9614]

Thank you sir

[@rituchaudhary8923]

👍👍👍👏👏👏

[@poojaverma4283]

Tq sir

[@DrVineshKumar]

Keep watching

[@poojaverma4283]

@@DrVineshKumar ji sir

[@PremSingh-wb4yp]

Thoda pyaar se batao Bhai aap to dara rhe ho😂😂

[@mansishukla1138]

Sahi me

[@short-SHIVANi]

The way of teaching nd their content is so good...so plzz don't criticize

[@adityamali2777]

😆😂😂