00:00Hey friends, I am not feeling too well today, I think I have a cold.
00:16Well, I guess it's a good time to tell you about what causes cold and many other such diseases.
00:26Sorry, and that's why...
00:30We'll talk about virus.
00:35Human!
00:38You know that a bacterium is a very tiny organism, right?
00:43Well, a virus is so small that it's invisible to even a bacterium.
00:50This is how it is able to infect the tiny bacterium and the cells in our bodies.
00:56Unlike the bacterium, the virus has no cytoplasm or a nucleus or anything resembling a cell.
01:06It has a very basic structure of the DNA, covered by an outer protein shell and some fats.
01:14That's why viruses can't even be considered organisms at all.
01:19They are not actually living.
01:22They float around like debris in space, waiting to contact a host.
01:28And only once they enter a host can they reproduce.
01:34Once inside, these little fellas hijack the cells of the organism by entering through the cell membrane.
01:47Once they do, the virus takes over the protein building structures of the host cell and forces them to replicate the virus instead.
01:58Instead, the poor cell unknowingly begins manufacturing an army of the virus till the entire cell is infected.
02:08This poor mindless slave cell does this till it explodes, releasing all the virus to infect the nearby cells.
02:19And that's how an infection spreads.
02:23That's why I got sick.
02:26But, don't worry, your bodies are super smart when it comes to saving you.
02:35Every time we fall ill with a virus, the body makes a special cell called a memory cell.
02:42This cell stores all the information about the virus and how it was defeated, so that the next time the virus attacks, your body's defense is ready to destroy it.
02:57Trivia time!
02:59Did you know that even antibiotics don't work on viruses?
03:05Because antibiotics are designed to fight bacteria.
03:10In your body, the most common viruses are actually Bacteriophages that infect and destroy bacteria.
03:23Oh, I think I have a cold again.
03:29Well kids, before I go, what's the common virus in our body that destroys bacteria?
03:37Oh, and here's hoping I feel better soon, so that I can keep bringing you so much fun and interesting facts.
03:51Until next time, this is me, Zooming out.
03:56Hush!
03:57Quick!
03:58Oh no!
04:00Hey kids!
04:02You liked my videos, didn't you?
04:04Before you go, don't forget to click on the subscribe button and the bell.
