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Influenza: the Flu Virus – One Minute Medical School

November 8, 2019

The flu is caused by the influenza virus. It looks like an old timey Russian
satellite. On the surface, it has neuraminidase, which gets the virus into
the cell and hemagglutinin which gets virus babies out. These are the H and the N numbers in any
particular flu strain. Unfortunately, these are constantly mutating, and therefore you can stay immune to the
flu. It’s because it’s an RNA virus, which copies itself very badly. Transmission is via SCAB: Secretions,
Contaminated surfaces, Air droplets, and Bird droppings. Up to
one-third people have no symptoms. These Manchurian candidates
pass it to those of us who do get symptoms, some of us who die. it spreads two days after a new
infection for five days, up to one day before you get symptoms, causing massive outbreaks.
Symptoms are SCHAMFF: Sore throat, Chills, Headache, Achy joints,
Muscle pain, Fever and Fatigue. These symptoms distinguish it from a cold.
it can progress to pneumonia, so watch for shortness of breath, or a recurrence of high fever after early
recovery. Prevent the flu by washing your hands, because soap kills it. And vaccinate!


  • Reply One Minute Medical School January 12, 2013 at 11:52 pm

    I see what you did there.

  • Reply Acid Storm January 14, 2013 at 8:15 am

    Great videos Rob! You're not even close to spending the old attention span so you're not turning into a talking head (or writing arm). Much learning is happening! I'm looking forward to more.

  • Reply One Minute Medical School January 14, 2013 at 8:24 am

    Thanks, Steve! Plenty more coming.

  • Reply Susan Parker January 22, 2013 at 10:59 am

    Why are you posting Susan B Komen ads on here? Huge contributer to Planned Murderhood and Big Pharma as well ( chemo) as well.

  • Reply lome le January 26, 2013 at 6:15 am

    Corection! H or HA helps virus to get in and N or NA helps virus to get out.

  • Reply One Minute Medical School January 26, 2013 at 12:09 pm

    Doh! Geez, I re-checked that *so* many times beforehand. Flu derp.

  • Reply maskof February 4, 2013 at 10:56 am

    When I get sick, all videos on youtube go by very quickly.

  • Reply i ate a cat February 18, 2013 at 3:36 pm

    Good luck finding a decent Doctor, then.

  • Reply i ate a cat March 11, 2013 at 12:34 am

    If by awakened you mean sadly uneducated and liable to give poor, unsubstantiated advice, sure, I'd agree.

    No doctor that recommends against getting vaccinated (barring special circumstances, of course) is a doctor you or anyone else you should be seeing. Ever. And they should be ashamed to call themselves a doctor.

  • Reply gmadel March 31, 2013 at 12:17 am

    Out of curiosity I watched most of your videos thanks it helped me a lot . I have a Q? Due to my job nature I travel a lot and I get flu almost twice a year .you mentioned that the virus mutate constantly how can I tell the right vaccine to take.

  • Reply One Minute Medical School March 31, 2013 at 12:23 am

    Currently, the trivalent (three-strain) flu vaccines made available every year are based on the three flu strains thought most likely to lead to outbreaks, as determined by WHO. It's imperfect, but it's your best bet. A quadrivalent (4 strain) vaccine has just been approved which will increase coverage even further, and work is underway on a one-time, universal flu vaccine, which is estimated to be 5 years from market.

  • Reply gmadel March 31, 2013 at 2:08 pm

    I appreciate your immediate response.I sure you heard the late news, two chines died from infection with a strain of influenza H7N9 as mentioned in the report believed not to be transmitted to human. My Q? Is do you consider H7N9 (three-strain) flu,and could it be the new outbreak. Thanks Dr. Rob and keep up the good work,…..

  • Reply One Minute Medical School March 31, 2013 at 6:17 pm

    Typically, bird flu strains, such as H7N9, are not included in the trivalent vaccine, because, so far, human-to-human transmission doesn't seem possible, just bird-to-human transmission. If a bird flu evolved and could spread human-to-human, that could trigger a very ugly global pandemic. The H7N9 story is one I'll be keeping an eye on and posting about on my Facebook page (Link in the banner on my channel page. YouTube doesn't permit links in comments).

  • Reply One Minute Medical School April 20, 2013 at 5:26 pm

    True. A one minute format involves being pretty tightly focused on a given topic.

  • Reply TheZeebraBee April 24, 2013 at 3:46 pm

    Wait, so you mean I probably still get the flue even though I never get symptoms? Only twice in my life have I had the flu symptoms. So is the flu just as bad for me as anyone else or do I have the ability to carry it but not to have adverse effects from it? I don't get the flu shot because I never seem to have the flu, and I hear many people say they never got the flu until after they started getting flu shots.

  • Reply One Minute Medical School April 24, 2013 at 3:59 pm

    You certainly can get the flu virus and be an asymptomatic carrier and then pass the virus along to vulnerable individuals. A good reason to get the vaccine is to prevent passing the infection along. I certainly agree that people say all sorts of things, in complete sincerity, but we need to verify those claims, not just accept them at face value.

  • Reply One Minute Medical School April 30, 2013 at 3:22 am

    True. The flu vaccine contains the 3 strains thought most likely to lead to the annual winter outbreak. A 4-strain vax has recently been approved in some jurisdictions, and a universal influenza vaccine is perhaps about 5 years away.

  • Reply abdn21 May 15, 2013 at 9:58 am

    These videos are brilliant! Thank you so much they're making revision much easier and more interesting than usual!

  • Reply Paul York June 25, 2013 at 6:38 pm

    The Bayer ad at the start, on heart disease, implies that aspirin prevents blood clots. One could also refrain from eating animal protein, and especially red meat, which has been proven to increase the risk of heart disease.

  • Reply One Minute Medical School June 26, 2013 at 1:30 am

    Right you are! Geez, I looked that over 3 times before recording. How did I get it backwards? Must have been a case of stage fright. Thanks for the correction.

  • Reply One Minute Medical School June 26, 2013 at 1:30 am

    Ads are assigned by Google based on relevance to video topic matter. ASA does indeed have Level 1 evidence to prevent thrombosis of the coronary arteries. I've not seen the evidence you're referring to. Could you provide the name of the authors, papers or journals where I might see this research? I'm very curious. Thanks!

  • Reply TheZeebraBee September 27, 2013 at 7:19 am

    I'm not around kids or old people or anyone who will get truly hurt if I accidentally give it too them though. And when I've had vaccines in the past I had some very adverse effects because of it. I avoid all non critical vaccines now so I don't have the reactions I have had before.

  • Reply Paul Escamilla February 12, 2014 at 10:31 pm


  • Reply Arsan Bahrami November 13, 2014 at 10:42 pm

    nice vid

  • Reply Manal Chafi April 29, 2016 at 5:42 pm

    there seems to be a mistake in this video as neurominidase doesnt bind to the host cell but it releases the cells from the cell surface thus hemaglutinin is the one that binds to the host cell.

  • Reply Shourya Meyur April 5, 2018 at 4:13 am

    Erythematous pharynx and cervical lymphadenopathy common?

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