Virology Lectures 2016 #1: What is a virus?
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- Опубликовано: 7 авг 2024
- In this first lecture of my 2016 Columbia University virology course, we explore the definitiions of viruses, their discovery and properties, and my goals for this course.
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Last year someone asked for HD video - so this year, the videos are all HD.
Vincent Racaniello as an IT professional interested in virology I am loving this lecture
Thank u so much Sir for your lectures about virology
54:54 you know you have a good teacher when he off-hand predicts the COVID-19 outbreak of 2020
True
I wish I could have someone in my university who practices the way of teaching like yours. Definitely an amazing presentation although without the animated graphics in it! Thank you for the bringing me to the world of virology professor.
Prof. Racaniello!!
Thank you so much for your Virology lectures, I watched them all!!! You are just amazing, and for the whole world!!!
Robert E Wilson, retired MD and author of Book of Mind and Book of Love
Thank you so much for these lectures Prof. Vicent Racaniello! Really, really appreciating the efforts to share this in RUclips, and now at HD. =)
You are an ocean of light. I can not wait to explore your gift. Thank you.
Prof. Racaniello thank you very much for sharing this. the videos are just perfect to watch. I see passion in them :)
Amazing course!
I study a new begomovirus and this course is really good!
Thank you
Lars
Sweden
Excelent!! I'll watch the enterily course, thanks for share your knowleg with us
I'm taking virology next year and I'm just too excited to wait till then to learn everything!
Karley Spriggs did u learn anything?
How's it going?
Good
I am fascinated by viruses and i always wanted to take Virology at a University. Thank you for theses wonderful lectures on a truly amazing subject, i love viruses! ^^
Not sure if everyone loves viruses like you. Coronavirus sucks!
One of the best teachers i have ever learnt from. Eager to follow further chapters
Thanks for the video Vincent, I think referenced some of your work in my dissertation for my degree in the UK, it was regarding HIV and the Ebola outbreak in West Africa
Amazing course, amazing virus! Thank you.
This is so awesome! I'm learning a lot! Thank you for posting!! :D
The 1:1 ratio of human to bacterial cells came from accounting for red blood cells, which make up a staggeringly large number of cells. If you discount the RBCs, it goes back to 10:1. So, either ratio is correct, they are different only in the details.
TWIV is great, by the way!
this is HEAVEN!! THanks so much for posting this so all can partake
Love this course!
Thank you for these. I'm not a student or anything but I love learning about infectious disease anything from the black death onwards. Fascinating stuff
+Pinkie If you, as you say, love learning... and you are here watching videos like this for interest... and thinking critically about the material... I'm sorry, but you ARE a student.
Love it, thanks so much.
Great video. I seem to get a bad virus about 3 times a year. Sore throat, loss of appetite, headaches, tiredness, runny eyes. The throat is the worst of it. Maybe I got this from my mothers line? My father never seemed to get them.
Thank you! Gathering information because I want to learn how to communicate with people how we work in a biological way. Yes is amazing how viruses can replicate and evolve to change to become better or smarter as well as our bodies do too.
Thank u so much Sir for your lectures about virology
I am here because I am trying to understand this whole #corona #virus craze. It is true that the press is not representing #science well...
Never thought I'd be watching a lecture on virology in my free time #coronavirus #quarantine (Thank You for sharing the lecture though.)
Edit: Definition of a "virus" at 26:05
Thank you so much Prof :)
great interesting video though, I had to take a basic virology class for my botany degree, I have chemistry degrees as well and work on developing pesticides with a focus on mammals and some are working on viruses that would affect strictly affect rodents, rabbits and the such what do you think of that ? I've developed a couple based on lysergic acid basically and also synthetic cannabinoids which are in synthetic Marijuana products. Basically they confuse the animal enough to lose their way back to their nest/hole or forget where they got the food from, that or they trip out really hard and just hit their flight instinct and scare them into eating it again
Q3:
Since there are so many virus particles, Is there any organism that feeds on them?
thank you Prof.Racaniello.
thanks alot from iraq keep up phd vincent
Hey Prof Racaniello.
I started at Royal Holloway in the UK intentionally to study viruses - only to find that the only professor that interviewed me and was teaching the course had resigned over the summer before I arrived - so I never got to study my subject of choice. That was many many years ago and I'm glad for the internet and for you making your lectures public! Thank you.
I hope you don't mind some critical feedback (a request in fact)... Whilst watching, it is sometimes difficult to follow you, as this is obviously your ppt presentation upload - but it misses all the parts where you are pointing at the screen etc. For example, one slide shows the scale of things down to the carbon atom and although the atom was labelled and so was easy to pick out, the others you mentioned including ribosomes etc. were not. Would it be possible for you to either have your lectures recorded 'live' by camera (or for you to edit your ppt uploads so we can see which part of a slide you're discussing) for future lectures perhaps?
Either way, thank you for allowing us non-enrolled students the opportunity to continue to study :)
PS - I found your personal views on 'alive or not' very useful - I have just had exactly the same discussion with my own students and can now provide them with another suggestion!
The swine flu, if I remember correctly, was the classical version. However, the 1918 Spanish flu was in the non-classical form, thus increasing it's infection rates
You sounds great dr :-)
Thank you, Prof, for this marvelous lectures, I really enjoyed watching and listening to this virology lectures. It is very interesting and covered a lot. However, may I please suggest if you can kindly add lectures on "oncolytic viruses" or "Viral Oncolysis" that is a specific area of my research interest even though I am anatomist but working in the area of Cancer Virotherapy. Thanks for your kindness.
The last lecture in this series, #25, covers the use of viruses for gene therapy including oncolytic viruses.
Okay, I will watch it. Thank you dear Prof for the knowledge share and impacted.
Virology courses 2021 learning about viruses is important to understand.
great video thank you
I was really interested in the idea of the virome and the how viruses can restore a more normal gut function in germ free mice. Additionally, how do the viruses from mom assist in the development of bacteria that make up the gut biome? Did I misunderstand the meaning?
Thank You Sir !!! :-)
Q1:
When I search for bacteriophage images on the web I only find images of the T4 type, the
syringe looking virus.
Are there any other shape of bacteriophages?
Are bacteriophages as selective as mammal viruses?
I have never seen a mammal virus of the "syringe" type.
Are there any? Is it because of the difference in cell membrane?
Are all "syringe" type bacteriophages?
Thanks for this video.I want to practice note-taking and this video is really hard for me.Some can give me some advices,please?
Q2:
At the 6:15 slide you show that there are about 100 viruses particles/bacterium in sea water.
That surprises me. I thought that the probability of a given virus particle finding its target organism was very very small. So unless they have a long viable lifetime (compared to its target) or that the fraction of parasitized bacteria the virus need to not going extinct is very small there should be a lot more virus particles/bacterium. Something like 10**6/1 or 10**7/1.
I think of it as the situation of the number of pollen particles in the air per flower target.
Thank you a lot
Amazing
What do you major in for this career and what is the difference between virology, microbiology and epidemiology? I want to work in a lab testing samples but confused about what to major in.
Thank you for TWiV and for this course, Prof. Racaniello.
I have a question about something you mentioned in this lecture. One of the very memorable TWiV episodes was the first time you all hosted Carolyn Coyne. I remember her conclusion that a surprising number of viruses cannot infect the placenta; I'm thinking about this issue a lot in the wake of the Zika virus reports on the presence of viral RNA in the amniotic fluid.
In lecture, you mention that newborns' guts have a virome (amazing!) because the amniotic fluid of a mother is full of viruses. I guess I'm surprised. How'd all those viruses get in?
Many thanks!
+Gabriela Blohm
I just listened to TWiV 375. All questions answered. thanks so much. that was a fascinating episode. www.microbe.tv/twiv/
+Gabriela Blohm How did the viruses get in the amniotic fluid...good question! We have no idea.
+Vincent Racaniello First, thank you for sharing these lectures with us, and I enjoyed your course on the Coursera platform. Are you intending on continuing offering this through the Coursera platform?
How does the virus enter into the body?
Can you breathe it in or is it transmitted through blood and other fluids?
Q4:
Could you mention something about how long viruses remain viable?
Minutes, hours, days, years, centuries?
😊😊
Hi Prof. Racaniello!
I went over the 2015 course, and I was just wondering if there's going to be any new information for 2016?
Thanks!
+ModernMen Yes, I update the course every year. Probably about 10% of the material will be changed.
+Vincent Racaniello Big thanks for posting your course, your blog, and your podcast. Your love for your field shines through. I've been working my way through your 3 year old coursera course. It is quite good, but I think I'm going to shift over here to listen to your most recent and up to date lectures.
Great lecture, although one thing bothering me. How could viruses originated before cells, when they need them to reproduce?
what do viruses do?
Thank you for making these awesome videos. My question is, what do you think would be the outcome if viruses did not exist? [aside from the fact that you wont find something to love :)]
Without viruses, there would be no life on Earth! That's because I believe that all life evolved from viruses.
Interesting point! do you have any articles available that supports your belief?
😃😃😃😃😃
my new retirement project!
Live in Liberia where Ebola killed thousands of individuals in 2oo14 ... . Now I want to study virology... after I have studied Chemistry and Biology in the state University . Please need your support..Thanks
If we each host a different, stable population of viruses on every finger, do we need to re-examine how hand-washing cuts rates of disease transmission?
Why?
Well, if viruses can survive long-term on each finger, maybe hand washing doesn't do very much. I guess its just a numbers game, but maybe it stands closer inspection, what's the deal with hand washing.
Continues body pains check this information for you to recognize
Why pains accumulate in your body.
Revitalise your your vital organs
Note you need to go for detoxification procedure to reduce the harmful virus into your body.
I’m here for the meme... but also, great lecture.
Sir plz do something for covid-19
''May be the next pandemic will come from the bat'' Said it @55:01 minutes. He said it in 2016. What a prediction!
TL;D...Watch? How do we unleash zombie apocalypse on the human race, cliff notes plz!
can you imagine what this course would of done to Howard Hughes?
+Sislertx Maybe he would have donated money to study viruses. The HHMI which was founded with his money barely investigates viruses because he had no say in their direction.
The beginning music has changed!!!
+Tianhao Xu haha I really like the beginning music, both this year and last year. And thank you for offering the 1080p this year.
Previously, On The Walking Dead.
The Walking Dead: The Virus Begin
I loovvvvvvve you prof.Vincent
please how can I take your online course on coursera.com
I wanna take certificate from you
+john Alawadi Not sure when I will offer Coursera virology again, perhaps this fall. Stay tuned.
+Vincent Racaniello I will I will .I hope that :* :)
easiest fluid to obtain is blood ? I beg to differ
Whose here beacause of corona?
Aren't viruses alive?
Scientists still don't know whether to classify them as living or non-living. The contain traits from both sides e.g viruses contain genetic material but the can't carry out metabolic reactions on they're own.
+David Quinn *they
'Maybe the next pandemic will come from a bat...'
So who kissed the dinosaur?,,,,,,the dinosaur mommy & daddy I imagine,,!