Active & Passive immunity | Human health & diseases | Subject | Khan Academy

[@nikhil2453]

who else is glad khan academy exists

[@abuabdullaahiwaaaishatah8235]

Me

[@Sunnyfield323]

Wonderful! Clear voice & visual . Hopefully we aim for great adaptive immunity/ active immunity and have enough nutrients for a strong immune system to act quickly by day 3 or 4 Eg in case of the flu .. if one is sick for a week or longer the immune system needs help

[@kanewilliamson5327]

I first here to watch and learn this wonderful concept

[@AnjiAnji-mh2qr]

Crystal clear explanation 🤯

[@LillianLucas777]

oh, thank you so much, ma'am. I highly appreciate your explanation.

[@leelaranireddy7803]

Thank you Khan academy

[@emynoack7344]

Thank you so much!!!

[@Hemaabisht294]

Concept crystal clear✨💯

[@najma1557]

Wow super lecture ❤

[@nyamiritut9291]

Very good explanation

[@k_sahani]

Concept clear...... Your voice is so lovely ❤

[@AbhijeetKumarViVi]

Clear and lucid explanation. Girl voice is so good

[@asit_dixit]

Tharki

[@puligillasrilatha1762]

That's a cool explanation really loved it ❤

[@Geoffsmeg]

Thank you that was awesome!

[@safiurrehmanjaffar9335]

Awesome

[@Cr7goat-r2f]

Lovely 😍🌹

[@riyaandkarankharayat5953]

❣️🌻👍

[@T.t.j_c]

Rahm has bad luck😭😭