Virology Lectures 2020 #23: Viral ecology

Рет қаралды 16,726

Күн бұрын

Ecology, the study of the relationships of organisms to each other and to their environment, is highly relevant to viruses. In this lecture we utilize selected virus-host interactions to explore how anthropogenic ecological perturbations lead to zoonotic infections, how viruses regulate global geochemical cycles, their impact on algal blooms, and the evidence for horizontal gene transfer.
And note: the photo of the Emiliania bloom is of the UK, not Italy. My error.

Пікірлер: 48

@jenmary99 4 жыл бұрын

Absolutely fascinating! I came to the course from TWIV. I had been an occasional listener since 2014, and I have been very grateful for the in-depth discussion of the current pandemic. Such a valuable contributor to public education, it is generous of you to share the course with the world.

@faanvdberg 4 жыл бұрын

Hello from South Africa. I am so grateful for your Virology lectures sir and thank you from the bottom of my heart.

@carlobottari5033 3 жыл бұрын

Thank you Vincent and team at Columbia! How much relevant information and implications are packed into these lectures - truly outstanding!!

@scottbritton3797 4 жыл бұрын

There have been some cool discoveries in the past 15 years.

@MrOzzyCam 4 жыл бұрын

Thanks professor Racaniello for another great lecture.

@wajidbashir2342 4 жыл бұрын

Respected Proff. Vincent Racaniello Lot of thanks for providing me very useful information about viruses.

@mmartin5816 4 жыл бұрын

Thank you Vincent! Great stuff

@makhetefall8003 3 жыл бұрын

Thank you Prof, it is 3h 26mn AM and I am enjoying this. I feel enlightened. This is fascinating. I am preparing for my eco class this Spring. I am from Senegal.

@2010securityful 3 жыл бұрын

extremely helpful video.Great thanks

@143951 9 ай бұрын

Freshwater viral ecology has a beautiful ring to it

@tbainbridge 4 жыл бұрын

Choanoflagellates are the individual unit which makes up sponges (Porifera) , they say that sponges are the first multicellular organism, but I think of sponges more as a "colony" of choanoflagellate "individuals" which decided to stick together and change their flagella to filter feeding purpose. I guess there is some definition I am missing. I guess there is some structure and function, even if it as all essentially the same cell type. (I think) Great video Vince

@luisfernando-mm3jt 4 жыл бұрын

Nice work. Thanks

@saeedalamoudi8839 4 жыл бұрын

Amazing .. thanks a lot.

@nicklane4714 4 жыл бұрын

The phytoplankton bloom satellite image is in the English Channel; the land mass is the South West corner of the UK (Cornwall to the west and Devon to the east). Plymouth is at the northernmost extent of the bloom. I wish it was the boot of Italy; I'd much rather be there than here...

@miribatyola2345 4 жыл бұрын

can you recommend some references please. I want to write a term paper on this topic. Thanks

@awilliamwest 4 жыл бұрын

Vincent, your audio at 48:06 seems in conflict with the slide, based on previous slides. I'm fairly sure the heading "Total Carbon - 10^6 tonnes" means the units of each number in the slide is "times 1 million tonnes", so there are about 3 to 30 gigatonnes of bacteria, .03 to .3 gigatonnes of viruses, and 4 to 12 megatons of whales. You read the virus number as tons, instead of megatons.

@drhandle4498 2 жыл бұрын

"You can tell it's in Germany because they have beer during the talks." Once the coronapocalypse abates, you need to come Down Under to more Australian meetings. We know how to do beer at meetings. Exhibit One: the Lorne Conferences...

@ImmunoMicro 4 жыл бұрын

What about ecology of viruses on land where human beings live?

@wolfram77 4 жыл бұрын

During 2013 summer in Singapore there was a also a haze for a number of days, when i was there of summer internship. It was possibly because of forests being burnt in Indonesia. But how do these forests burn, in the tropics where it is always humid. Could they have used palm oil itself as a fire starter?

@wolfram77 4 жыл бұрын

25:26 Can reservoir viruses be considered symbiotic, because they prevent predators from consuming these animals, say snakes or cats?

@michaele.4702 4 жыл бұрын

Beer during talks is the correct way to go, though I don't drink myself.

@mariezoe2411 4 жыл бұрын

The human quest for Cheap Pork functions as a key driver for the emergence of deadly infectious contagions like novel corona viruses that cause Pandemics.

@guillermovegabalderas6913 4 жыл бұрын

Excelente análisis

@whoever6458 4 жыл бұрын

I need that virus that lets the plant survive hot environments because it's entirely too hot in this particular environment, at least for me.

@carcaperu4041 4 жыл бұрын

39:00 For how long does a virus remain viable in sea water?

@MrOzzyCam 4 жыл бұрын

There are approximately 10 million viruses in every drop of surface seawater! www.futurity.org/millions-of-marine-viruses-ebb-and-flow/

@henkvandergaast3948 4 жыл бұрын

Goodness.. Its Sunday.. I am not even allowed to mow the lawn on Sunday

@henkvandergaast3948 4 жыл бұрын

Now I have absorbed this and today's TWiV I can only say... Wow.. The lecture was fun.

@wajidbashir2342 4 жыл бұрын

Amazing information #VincentRacaniello

@michaele.4702 4 жыл бұрын

I love doing field work I just need to get paid for it.

@AimerGDiaz 4 жыл бұрын

28:00 viral particles on the water

@netto682 4 жыл бұрын

👏👏👏🇧🇷👀👀👀

@hasannaeem1578 4 жыл бұрын

Where is HIV/AIDS lecture 2020?

@westfield90 4 жыл бұрын

I have a lot of respect for you and your vast knowledge. In your opinion what do you think are the chances of us finding an effective covid-19 vaccine within a year or two. In last years HIV lecture you stated “perhaps we need to understand the immune system better” when you were pondering on why we haven’t found a successful HIV vaccine in over 30 years. This made me realize how difficult it is to make a vaccine. I really would be surprised if we did find an effective vaccine.

@hasannaeem1578 4 жыл бұрын

westfield90 1 in 730

@westfield90 4 жыл бұрын

Hasan Naeem thank you. Can you explain further why that number?

@hasannaeem1578 4 жыл бұрын

Steve Mclean You’re Right. But the SARS-COV-2 don’t give us long lasting immunity. I am sure you have heard that many people who was infected by the virus got it even after being recovered. I think the kind of vaccines we were using can’t help us in this pandemic. We need to think about a new type of vaccine for this particular virus. But if we can make something that can prime our immune system like we did earlier. It would at least take 1 year to be available for everyone in the world. But as you said, resources are thrown at the research. So we can hope that it is available very soon.

@westfield90 4 жыл бұрын

Steve Mclean I had heard this as well but as Dr Fauchi loves to say these are anecdotal reports on a few people from China. No details of how their health is, the degree of reinfection, were they fully recovered first time. Of course mainstream media reaches conclusions based on such sketchy evidence but I haven’t heard many widespread scientists back this up.

@westfield90 4 жыл бұрын

Steve Mclean since this question has always bothered me and I did find a video of Dr Fauchi many years ago where he said the AIDS virus is unlike others in that it attacks and destroys the immune system. In regular viruses it attacks other cell types so you still have your own immune system attack the virus. So comparing the failure of an HIV vaccine and thf potential of a covid vaccine is not fair. So I’m hopeful that we get something.

@user-ol5fm7gw5p 3 жыл бұрын

Sir vaccine failed 109% no save covid19

@pixelated_dinosaur 4 жыл бұрын

micro-ecology???

@how2pick4name 4 жыл бұрын

Genome G-nome Gnome

@MiuMiuKoo 4 жыл бұрын

I have always used genome but i am an old foggie who is retiired now and so not sure if you could use other abbreviated forms these days 😊

@LJO_Hurts_Pianos 4 жыл бұрын

KeiraR - Now we know the origin of RNA/DNA. I've heard a great deal about you and your groundbreaking article on the "Genome --> Gnome" question. However is it possible that there is a link between "Gnome" and GOMER ("Get Outta My E.R." -- a derogatory term used to describe annoying or disruptive E.R. patients). ...Thus: Genome --> G-nome --> G_ome --> GOMER Please reply at your earliest convenience. Thank you!