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Koch's Postulates

  Рет қаралды 149,046

Biology Professor

Biology Professor

Күн бұрын

Пікірлер: 203
@ty_hens
@ty_hens 3 жыл бұрын
So straight to the point and informative while providing some assessment on the subject. Literally a perfect tutorial video.
@mymusic7008
@mymusic7008 3 жыл бұрын
It's really helpful in my studies... Lots of respect from India 🇮🇳
@Morrowindur
@Morrowindur 4 жыл бұрын
Not one of these postulates is satisfied for SARS-CoV 2!
@joewong6662
@joewong6662 4 жыл бұрын
Morrowindur and cOVID-19
@be_rt
@be_rt 4 жыл бұрын
low key, for none of the "virusses". Virology is dogma.
@agokllani
@agokllani 4 жыл бұрын
Can’t test it on human via injecting them as it’s unethical but can inject with with vaccines that contain the virus lol
@gwat34
@gwat34 4 жыл бұрын
@@be_rt This guy gets it. It's sad most don't realize this about germ and viral theory. All dogma, no science.
@amadeusb4
@amadeusb4 3 жыл бұрын
You didn't watch this video to the end did you? Try that next time.
@christine1401
@christine1401 3 жыл бұрын
Your videos deserve more recognition ma’am. Thank you for this!
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
Thank you so much!
@jessicahancock3901
@jessicahancock3901 7 жыл бұрын
Thank you very much for this video, it has given me a good understanding of Koch's Postulates.
@matthewsheats1880
@matthewsheats1880 7 жыл бұрын
TY for the clear cut version.
@janpowell7536
@janpowell7536 4 жыл бұрын
They need to do this for Covid 19 to prove what it is and if it exists
@matafiyd
@matafiyd 4 жыл бұрын
Is this for bacteria only or virus’s and bacteria?
@BiologyProfessor
@BiologyProfessor 4 жыл бұрын
Any pathogen, though some (like viruses) can’t be grown in pure culture. Koch didn’t know about viruses when he developed his Postulates.
@stevebilliter
@stevebilliter 3 жыл бұрын
@@BiologyProfessor You can also use Rivers modifications from 1937, which has overlap with Koch's. There is no proof that any virus has been isolated--that has to be done, because a virus us still a pathogen if it exists at all--I see no proof that any virus exists--nor any proof of contagion--where's the studies? It appears that Pasteur's germ theory is incorrect, and terrain theory is correct.
@michaelkwofie150
@michaelkwofie150 2 жыл бұрын
I never thought I could understand Koch's postulates until I met you ❤️
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
I’m glad you found me then! ;)
@jonathanc1084
@jonathanc1084 7 ай бұрын
Thank you! Great teacher and, on top of that beautiful and charismatic.💌
@ohlottie
@ohlottie Жыл бұрын
It also doesn’t feel ethical to me to purposely inflict animals with disease.
@mckenna8663
@mckenna8663 8 жыл бұрын
What is the point of step 4? If 1-3 are true and done correctly - and if the previously healthy unaffected host gets the disease.... is that not proof enough? What does step 4 prove BEYOND steps 1-3?
@BiologyProfessor
@BiologyProfessor 8 жыл бұрын
It is kind of like a double check to make sure that the bacterium you injected into the host in step 3 really did infect the host and grow and replicate to cause disease.
@mckenna8663
@mckenna8663 8 жыл бұрын
Biology Professor ok... thanks I'm really enjoying your Channel. You have helped me understand microbiology quite a bit
@BiologyProfessor
@BiologyProfessor 8 жыл бұрын
Awesome! That's great to hear!
@OVERDOSE
@OVERDOSE 9 жыл бұрын
That was amazing! The problems pertaining to the postulates were exactly what I was looking for. Keep up the good work! Cheers,
@sridharkrishnaswami5221
@sridharkrishnaswami5221 3 жыл бұрын
Excellent Presentation by the Speaker
@mohdajaz2703
@mohdajaz2703 3 жыл бұрын
I think this Fill in the blanks method is unique and easy to understand.Thank you👍🙏
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
Thanks! I enjoy teaching this way.
@shyama5612
@shyama5612 3 жыл бұрын
Wonderful explanation A variation of this for viruses is called Rivers criteria FYI.
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Yes, thank you for pointing this out. The work of Rivers is mentioned here: www.nature.com/articles/423240a
@Mariiiam
@Mariiiam 2 жыл бұрын
THANK YOU PROFESSOR!
@mbalixsibiya
@mbalixsibiya Жыл бұрын
How do we find the bacterium in every case of disease
@wraithdefilerjj1039
@wraithdefilerjj1039 3 жыл бұрын
Thanks for the clear explanation! :)
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
You are welcome!
@carlrichieukmusic
@carlrichieukmusic 2 жыл бұрын
Virus Mania book also explains this well
@kombuchababy6542
@kombuchababy6542 2 жыл бұрын
A virus is an "obligate intercellular PARASITE?" In that case, would anti-parasite drugs be helpful? Or does "parasite" simply describe a mechanism similar to but not the same as an actual parasite?
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
It’s intracellular (replication inside cells), not intercellular (between cells). And here, we are using the basic definition of a parasite: something that lives in or on its host and steals nutrients from that host, to the benefit of the parasite and the detriment of the host. Anti-parasitic medication‘s are typically not going to work against viruses, because anti-parasitic medications are designed to treat eukaryotic parasites, like protozoans or helminthic worms. Antiviral medications are developed to target viruses specifically.
@kombuchababy6542
@kombuchababy6542 2 жыл бұрын
@@BiologyProfessor Thank you!
@jishnuroy5001
@jishnuroy5001 3 жыл бұрын
Thank you mam, for clearing out my doubts.
@jordankoch6742
@jordankoch6742 6 жыл бұрын
Thank you for pronouncing my name right
@BiologyProfessor
@BiologyProfessor 6 жыл бұрын
Haha, you're welcome. :)
@StevePhillips
@StevePhillips 2 жыл бұрын
Finally I understand Koch's postulates in microbiology.
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Great! :)
@amberbenton7658
@amberbenton7658 3 жыл бұрын
Thank you for your videos! They are very helpful!!
@SagrikaOberoi
@SagrikaOberoi 5 жыл бұрын
Loved your lecture ..love from india 😊❤
@gmw405
@gmw405 4 жыл бұрын
Does this not relate to virus then since virus is not bacteria ?
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
This does not apply to viruses. Koch developer these postulates before the discovery of viruses. Viruses cannot be grown in pure culture.
@stevebilliter
@stevebilliter 3 жыл бұрын
@@BiologyProfessor They put Vero cells and an antibiotic in the purification process and faked finding CV 19--viruses cannot grow in culture because none exist. kzfaq.info/get/bejne/f9WpqrGBvaeymWg.html Andrew Kaufman M.D. - The Rooster in the River of Rats - Koch's Postulates (35 min) He shows exactly how the pandemic got started and brings the details of the studies out to view and reveals the fraud.
@gearsb.8279
@gearsb.8279 8 жыл бұрын
This video really help me but i got a question, from what i learned, isn't it better to use susceptible animals rather than healthy one since the patient that we got pathogen from might not be in healthy state too??
@BiologyProfessor
@BiologyProfessor 7 жыл бұрын
This is an interesting question. For the purpose of Koch's Postulates, with the goal of proving conclusively that a certain microbe causes a certain disease, it is important to use a healthy animal subject. However, I could accept the argument that, for certain microbes only capable of establishing diseases in an already unhealthy host (one with a weakened immune system, for example), that a more susceptible host with a weaker immune system might be necessary for disease symptoms to appear. This will normally not be the case though. Thanks for asking!
@johanatrujillo5521
@johanatrujillo5521 4 жыл бұрын
Absolutely love your videos.
@jeannette_guerrero
@jeannette_guerrero 8 жыл бұрын
The volume is so incredibly low
@BiologyProfessor
@BiologyProfessor 7 жыл бұрын
I've updated my recording equipment since this video was made; my new videos are much better sound.
@jacobhenson6360
@jacobhenson6360 5 жыл бұрын
Jeannette S turn it up then
@stevecarter7612
@stevecarter7612 4 жыл бұрын
Really liked this video it really helped! Thank you! I have a question though - With the problems of Koch's postulates you mentioned meaning it can't be used to establish this casual relationship, is there a newer model that we follow instead? Or is Koch's postulates still used but "with a pinch of salt"?
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
There are new kinds of evidence, like PCR tests. When thousands of people test positive for a specific sequence of viral DNA, and the transmission chain from person to person can be observed, and treatments for that virus that work in vitro also work in patients, it’s pretty clear what’s going on.
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
That is misinformation that has been spreading, unfortunately. www.google.com/amp/s/in.mobile.reuters.com/article/amp/idUSKBN24420X
@MusicMixes100
@MusicMixes100 3 жыл бұрын
@@BiologyProfessor Not completely though, I found an interview of Kary Mullis in which he said that testing with PRC doesnt mean the thing you are testing for made you sick or will hurt you per definition. its just an amplification of molocules, and if you amplicate the right ones often enough you can find almost any common strain of bacteria or virus. Even when those virusses are already dead we still carry "prints" on our genomes and/or DNA. So basically high infection rates depend on how many cycles of amplification you use. So in his words, you cant mis use PCR, you can only interpet it wrong.
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
It’s true that it could be interpreted incorrectly. That’s why it is only one type of evidence to be used. Using epidemiology to track transmission structure, using animal models to do infection studies, using PCR on people with and without symptoms, etc. all give a fuller picture of Disease.
@sridharkrishnaswami5221
@sridharkrishnaswami5221 3 жыл бұрын
Very Easy to learn
@Maremare680
@Maremare680 9 жыл бұрын
Your videos are very good, sadly, the volumen is always low.
@simonmeehan362
@simonmeehan362 3 жыл бұрын
Lovely job! Thank you so much
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
Thanks :)
@Lifescience7cPGp
@Lifescience7cPGp 2 жыл бұрын
Thank you ma'am
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
You are welcome
@hamzawajid805
@hamzawajid805 8 жыл бұрын
Thank you, great job.
@faizal3882
@faizal3882 9 жыл бұрын
covered everything i needed. thank you
@jadelynstevens4760
@jadelynstevens4760 2 жыл бұрын
This was very helpful thank you!
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Glad it was helpful!
@Katie404x
@Katie404x 10 ай бұрын
Thank you for simplifying it
@NatalieWanGG
@NatalieWanGG Жыл бұрын
Why should we isolate the bacteria from the host?
@rockysidhu2510
@rockysidhu2510 4 жыл бұрын
Splendid video for learning
@sandeepsahu8090
@sandeepsahu8090 4 ай бұрын
Excellent ma'am
@marydulay5651
@marydulay5651 3 жыл бұрын
Hoping all discussions would be this Short but detailed 😊😊 thanks for the video 'twas a big help
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
You are welcome! I try to keep it short and sweet. ✅
@syednizba7577
@syednizba7577 4 жыл бұрын
Thank you so much... U helped me a lot through this explanation.. Tqq
@lailamohd9267
@lailamohd9267 7 жыл бұрын
The volume is extremely low, other than that this video helped me a lot .
@BiologyProfessor
@BiologyProfessor 7 жыл бұрын
I've updated my recording equipment since this video was made; my new videos are much better sound.
@naveedahmad4498
@naveedahmad4498 5 жыл бұрын
Your teaching method so easy 👉 💪
@user-el6mt5gh5c
@user-el6mt5gh5c Жыл бұрын
Your helpful thnks 😊
@joselynsalabsab6827
@joselynsalabsab6827 2 жыл бұрын
Thanks
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
No problem :)
@ernie8497
@ernie8497 4 жыл бұрын
Hi Dr. Whitney, is there anyway to contrast Koch’s postulates with the microbial damage and host response framework?
@parasdev4478
@parasdev4478 4 жыл бұрын
Thanks a lot...😊😊
@patriciadisney8371
@patriciadisney8371 9 жыл бұрын
Thanks, great video!
@NFLbeatster
@NFLbeatster Жыл бұрын
Mark and Scott Kelly along with Aaron Rodgers are at the center of this all. And Adam Scott was cast on Severance because of the name disguise... As for COVID, that's Aaron Rodgers' middle name
@MarykMakwelele
@MarykMakwelele 2 ай бұрын
Impressed ❤
@MOH-hw2fl
@MOH-hw2fl 9 жыл бұрын
Thank you so much 👍
@crawlbitchcrawl
@crawlbitchcrawl Жыл бұрын
❤thanks!!
@muhammedhisham9016
@muhammedhisham9016 5 жыл бұрын
Helped a lot
@hj86.10
@hj86.10 7 ай бұрын
Thank u ms
@martingasper8860
@martingasper8860 3 жыл бұрын
Thanks U❤️
@bzippo
@bzippo 9 жыл бұрын
thanks this helped me with my homework
@kobemofid3960
@kobemofid3960 5 жыл бұрын
Thank you very much but I want to know some of the pathogens that can infect humans but not animals ?
@BiologyProfessor
@BiologyProfessor 4 жыл бұрын
Bordetella pertussis is an example of a bacterium that only affects humans not animals. HIV is an example of a virus that only affects humans.
@FeFabregas
@FeFabregas 4 жыл бұрын
@@BiologyProfessor So How can we prove HIV causes AIDS? Is there any postulate better than Koch's?
@iammynameischris7228
@iammynameischris7228 4 жыл бұрын
you had a strong start , . .
@AsifAsif-yw5sh
@AsifAsif-yw5sh 4 жыл бұрын
Nice and good
@johnparadise3134
@johnparadise3134 3 жыл бұрын
Does this apply to viruses as well as bacteria?
@tioh2001
@tioh2001 3 жыл бұрын
She answers this near the end of the video...and the answer is no.
@swapnilrokade229
@swapnilrokade229 2 жыл бұрын
Thank you mam🤞
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Most welcome 😊
@harshpise3395
@harshpise3395 5 жыл бұрын
Thanks mam...
@johnparadise3134
@johnparadise3134 3 жыл бұрын
Are these four criteria still valid today? They were first established in the 1800s? I bet they are, but I’m just asking.
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
I go over some of the problems and caveats, starting at 4:04
@Hip-Gnosis1134
@Hip-Gnosis1134 4 жыл бұрын
But but but..... covid-19 is special!
@somethingstrange7184
@somethingstrange7184 3 жыл бұрын
Well yeah it’s a virus not a bacteria
@jeneway1
@jeneway1 3 жыл бұрын
It's a pathogen so this would still apply
@baghiballsakh82
@baghiballsakh82 3 жыл бұрын
Well, covid 19 is a disease, and the virus that causes covid 19 is called SARS-CoV-2. @@jeneway1 Viruses won't replicate in pure culture so this particular process wouldn't apply.
@mistful808
@mistful808 6 жыл бұрын
i can't hear anything. i could be going deaf
@knowledgebone109
@knowledgebone109 9 жыл бұрын
nice informative video
@user-ip9lw8wq4o
@user-ip9lw8wq4o 2 жыл бұрын
😍😍beauty with brain
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Thanks :)
@user-ip9lw8wq4o
@user-ip9lw8wq4o 2 жыл бұрын
@@BiologyProfessor always welcome 🥰keep uploading such kind of vedios
@rajdeepdas3211
@rajdeepdas3211 2 жыл бұрын
❤️
@sandisonkosi9835
@sandisonkosi9835 8 жыл бұрын
thanks
@rubycastillo6655
@rubycastillo6655 7 жыл бұрын
Who's here for Professor Ndeta Microbiology class? University of Rio Grande Valley? lol
@2NDFLB
@2NDFLB 4 жыл бұрын
* What's your favorite color ? *
@sridharkrishnaswami5221
@sridharkrishnaswami5221 3 жыл бұрын
Cheer up Madam
@feat.shanika
@feat.shanika 3 жыл бұрын
Who else is here before the exam
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
Hope it went well!
@abhihepat848
@abhihepat848 4 жыл бұрын
Which country?
@han708
@han708 4 жыл бұрын
Roses are red, violets are blue, I have biology and so do you
@MrLaughs4you
@MrLaughs4you 7 жыл бұрын
is it ethical to do step number 3 to people who are on death row
@BiologyProfessor
@BiologyProfessor 7 жыл бұрын
I suppose it would depend on whom you ask.
@americanbee
@americanbee 7 жыл бұрын
Not in every situation this can be done! It was considered before, but not now. For ex they don't experiment with syphilis
@livelylemongrass
@livelylemongrass 7 жыл бұрын
it's also unethical to inject animals with pathogens
@BiologyProfessor
@BiologyProfessor 7 жыл бұрын
Some people would agree with you, others would not. It is kind of a gray area, I suppose. Thanks for commenting!
@pandorasmind4735
@pandorasmind4735 6 жыл бұрын
It is not Really.... it is unethical to inject a patient something without taking consent or giving them enough info about the injection. it is unethical to talk about patients privacy outside the working premise. but it is not unethical to inject an animal with pathogens in my eyes, because first of all, it does not the brain capacity or self consciousnesses to be aware of what is actually happening. You might argue, "But what if there is a human in a coma, they dont have the brain Capacity or self Consciousness". And to that is say, but that is not the default state of a normal human beings. Humans are classified as Animals but we are the superior to other Animals due to our Brain, and we cannot treat both the same. Therefore, we do have to respect a human's decision and privacy, and we should not treat animals in the same way. I do agree that animal testing is bad, but that is "Empathy" and not "Ethics". Ethics is simply a set of rules that separates the right from the wrong. And animal testing according to Ethics is not wrong if you really thing about it.
@klarageist413
@klarageist413 4 жыл бұрын
Please in German Translation
@sridharkrishnaswami5221
@sridharkrishnaswami5221 3 жыл бұрын
German Mictobiologist
@tahirtantary7438
@tahirtantary7438 5 жыл бұрын
Nice ...love u madam
@berfindogan8780
@berfindogan8780 3 жыл бұрын
Valla çok haksızlık hiçbir yerde Türkçe yok ,koch postulati
@BiologyProfessor
@BiologyProfessor 3 жыл бұрын
Very sorry, but I do not speak Turkish.
@SonOfJ
@SonOfJ 2 жыл бұрын
Funnily enough, all of these pronunciations are wrong, but don't bother trying to pronounce it right cause it's a germanic sound which is way too hard to pronounce for English speakers. Same as van Gogh, it's simply too weird of a sound for people who don't speak a germanic language.
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Fair enough. I did my best. :)
@SonOfJ
@SonOfJ 2 жыл бұрын
@@BiologyProfessor Exactly, and that's what counts!
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
Yes :)
@realest_shirts
@realest_shirts 3 жыл бұрын
Uhhhh.. COVID?????????????????????!!!!!!!!!!
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
auckland.ac.nz/en/news/2020/11/16/kochs-postulates-covid-and-misinformation-rabbit-holes.html
@alexanderpadalka5708
@alexanderpadalka5708 5 жыл бұрын
🗽
@chickstar69duplicity35
@chickstar69duplicity35 4 жыл бұрын
Omg just get on with it pleeeease
@231mac
@231mac 4 жыл бұрын
You flunk a lot, huh?
@chickstar69duplicity35
@chickstar69duplicity35 4 жыл бұрын
@@231mac with a comment such as that I would suggest you probably are the one who flunks, as you put it. I never have 🤣🤣
@231mac
@231mac 4 жыл бұрын
@@chickstar69duplicity35 That _really_ doesn't make any sense. At all. Ever. Could you please elaborate on how you came to hypothesis that bit of learned wisdom? Oh, and use more emojis next time! They really accentuate the height of your intellect! Wow oh wow, we're dealing with a Grand Master over here!!!
@chickstar69duplicity35
@chickstar69duplicity35 3 жыл бұрын
@@231mac hypothesis is a noun btw
@231mac
@231mac 3 жыл бұрын
@@chickstar69duplicity35 You're completely right, I meant to write 'hypothesize'. Now, with your inability to capitalize, or to even utilize basic punctuation skills, we'll call it even. 😉
@onefromtheotherside
@onefromtheotherside 8 жыл бұрын
owwo. you are cute!
@moderngames3837
@moderngames3837 4 жыл бұрын
I love u mam .u are so so cute
@omkardole1395
@omkardole1395 4 жыл бұрын
WATED MY TIME.... USELESS
@Hip-Gnosis1134
@Hip-Gnosis1134 4 жыл бұрын
How so? Literally explains what Koch’s postulates is and how to apply it. Maybe rewatch?
@chickstar69duplicity35
@chickstar69duplicity35 4 жыл бұрын
Who cares about pronunciation!!
@virtuality400
@virtuality400 2 жыл бұрын
can you make a video on the limitation of koch postulates 🥹😭
@BiologyProfessor
@BiologyProfessor 2 жыл бұрын
I discuss the limitations in this video you commented on, starting about 4:05.
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