Virus-Cell Interactions Part 1: Productive vs. Non-Productive

Now that we know a bit about viruses, we understand that they require a host cell. So let's get some more details about how viruses interact with cells. There are a few different ways this can play out, so let's start by looking at productive vs. non-productive virus-cell interactions.
Script by Kellie Vinal
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[@dww527]

Great job Dave, most comprehensive video I have seen, others are piece meal at best, yours covers all transition possibilities.

[@Dustquake]

Nicely done. I appreciate that it covers variations of interactions as well as the variations of infections.

[@himmelsgucker9864]

Hey Prof, love your videos!

[@KnighteMinistriez]

That was cool. I liked this video. I like learning, keep up the good work.

[@renatabudaszewski2565]

Great and very clear, thanks

[@Primal_Physics]

you are truly an inspiration for me after getting in touch with you i learned many things and i started my channel !!! thanks sir for lots of knowledge

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That's great bro I am going to subscribe you and wishing good for this journey !!

[@Primal_Physics]

@@ayanniec3951 thanks bro

[@r.sgames5054]

👍 keep going bro

[@ayanluap]

wish u best of luck!

[@Primal_Physics]

@@ayanluap thanks bro

[@julesverne4339]

Live Forever Young and Prosper, Professor Dave, Past, Present and Future.

[@emanali3999]

Thank you very much

[@curtpiazza1688]

Learning a lot.....thanx!

[@asadmahmood9255]

Infection in virology means that virus is able to enter into the host and appearance of symptoms is a different thing. So, infection occur in both productive and non-productive cases but appearance of symptoms is hindered in this case because host cell is not susceptible or accessible which is of course the reason of visible symptoms.

[@fahimfuad7509]

U ARE THE BEST TUTOR

[@Vivaswaan.]

You have a degree in Chemistry. Yet you are so much better in Biology than my school Biology teacher, who has a degree in Biology.

[@archivistvault]

Cause they are both diferent subjects.

[@EricLS]

He also has a degree in Science Education, so that helps

[@saimahirani3836]

Awesome!

[@ajhproductions2347]

I love how hes all normal here, and in the videos where hes debating the globebusters dorks, hes so incredibly insolent! cheers!

[@icywarhammer5003]

i need links to their supporters channels so i can post links to his youtube videos in their comments

[@Moyato04]

Thank you for your video; when explaining viral entry, would it not be prudent also to describe the types of fusion protein? I am teaching second-year students viral replication but would like to know where to draw the line.

[@lakhan840]

It's going on in our microbiology class

[@jananishambhasivam7952]

Professor can you put a video on e1cb reactions

[@ryantoth676]

So this is a fun thing to do Watch the first two episodes of Extra Credits' "1918 Pandemic" series. Watch every professor Dave virus video. Finish the extra credits series. It's great

[@ExiledBowser]

What type, productive or non-productive, is used for gene theraphy?

[@Naturesessence-mk6oz]

Anyonecananswer howthe capsid size of virus affect the infection rate

[@allishaallisha6967]

professor dave pleas tell me what is the best way to learn chemistry word i am in chemistry department and i want to learn about my department good can you tell me what is the best way to learn, thanks

[@akshaygullapalli6500]

Love from India ✨

[@jbirdmax]

You may have covered this in a past video, but what I want to know, is how and where are viruses created?

[@ProfessorDaveExplains]

they evolved alongside cellular life

[@jbirdmax]

Professor Dave Explains I’m interested to try to find out where the originate from. So they evolve from within an animal e.g. a chicken? Along with said animals own cells?

[@ProfessorDaveExplains]

well we don't know for sure precisely how they originated, but they are old, much older than animals

[@jbirdmax]

Professor Dave Explains WOW! That is so incredibly fascinating. You have seriously got me hooked. I’m going tomorrow to meet a friend who works at a library. I’m going to see what I can find on it. Anything on virology that you could recommend? I would so very much appreciate it. Speaking of, Thank You for all your time here with me Professor Dave. I appreciate more than you may know.

[@TheOwlGilga]

@@jbirdmax Three major* theories exist. 1. That they are a side product of former cells from the origins of life, of which by chance reproductive DNA left them and by chance, managed to infect another cell and reproduce by using them. 2. Viruses were the start of life. That their mechanisms of reproduction were by chance with the soup of molecules that they found themselves in, and not by cell organs we have in cells today. Eventually a virus could reproduce itself and thus became alive. If those primal RNA/DNA strands can even be considered life is questionable but we know for sure that they were not alive by our definition. 3. That viruses used to be cells but abandoned their own means of reproduction. We already see things like Mitochondria, which are absorbed cells turned into cell organs. Why not a step further? A cell that used another cell to reproduce itself while leaving its host to die? None of these theories may be right or perhaps they are all right. We will never truly know. But they give insight on how things could have happened.

[@jbirdmax]

By the way Dave, whenever you destroy flat earth garbage nonsense, You’re a freaking badass.

[@jbirdmax]

nelk pary it’s called “theory” because it isn’t the aim of science to prove ANYTHING. In science if you believe something is blue, we try to prove it isn’t. If you can’t prove it isn’t blue then you have a running theory that it is, unless or until someone else can prove it isn’t.

[@jbirdmax]

nelk pary we tried to prove the earth is not a globe but continuously failed to. All evidence points to a global earth. That was realized over two thousand years ago. But there are a few gullible people who will see a KZbin video and just jump off the deep end without any actual evidence from anyone credible or otherwise.

[@bennyishere1046]

Hey professor

[@thomasneal9291]

I just wanted to say... This video was recommended to me by youtube, right after it recommended a video titled: "Bacon grease as engine oil?? LET'S TRY IT!" so uh... I guess that means you've reached that level of popularity. which, ironically, is a good thing. that channel has a HUGE following.

[@ZainaNalumansi-de9yu]

Atleast I now understand better in virology

[@therobot1080]

3:03 i like some number 2 😂😂😂👌👌👌

[@MrBrownpotato]

So how do viruses actually multiply? Is viral mRNA molecule translated more than once (i.e. reused)?

[@ProfessorDaveExplains]

Yes, many copies are made in each host cell.

[@MrBrownpotato]

@@ProfessorDaveExplains thank you, I currently understand that a mRNA molecule has a specific lifetime, which is minutes to days in our cells, duing which it can be translated multiple times to produce many copies of a protein. Eventually, mRNA molecule is destroyed in a process called mRNA degradation or decay. I still don't understand though how multiple copies of viral RNA (which is not a protein) are created.

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Who else havent seen it yet already gave a like?

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3rd

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[@ivann8971]

Why wont you accept my subtitles in your last video? Not english...

[@ProfessorDaveExplains]

i check once a week and accept all the reasonable ones

[@ivann8971]

Ok, thanks for answering

[@VyvienneEaux]

I'm watching this because I realize that I fell in love with Professor Dave a long time ago. Help! T-T

[@buddy5196]

Time to stop.

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Sounds scary

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First!

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bruh moment