Introduction to Coronaviruses (SARS, MERS, COVID-19): Hosts, Symptoms, History of SARS and MERS

JJ Medicine
Education 7:21
720p 360p 160k 128k
245,309 3,323 131

Lesson on Coronaviruses (SARS, MERS, COVID-19): Viral subtypes, Coronaviruses are a family of RNA viruses that are important viral pathogens in animals and humans. There are four classifications of coronaviruses, with two that are important causes of infections in humans. Coronaviruses can cause both respiratory tract infections and gastrointestinal infections in adults and children. Signs and symptoms are variable dependent on the coronavirus involved. Animals can be both infected and be hosts for the coronaviruses. Transmission of these viruses between species can lead to mutations and development of novel coronaviruses, which can lead to human epidemics and outbreaks. In this lesson, we also discuss a brief history of past human outbreaks and epidemics involving coronaviruses, including severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) and the new Wuhan coronavirus (2019-nCoV).

I hope you find this lesson helpful. If you do, please consider liking, subscribing and clicking the notification bell to help support the channel.


****EXCLAIMER: The content (ex. images) used in this lesson are used in accordance with Fair Use laws and are intended for educational/teaching purposes only.****


1) The proximal origin of SARS-CoV-2 (2020). Nature Medicine.
2) Review of Bats and SARS (2006). Emerging Infectious Diseases.

*Subscribe for more free medical lessons*

Please help support this channel and future lessons by becoming a patron (and get some cool stuff) ➜


Try Audible and Get A Free Audiobook

For books and more information on these topics

Follow me on Twitter! ➜

Come join me on Facebook! ➜

Start your own website with BlueHost ➜

Check out the best tool to help grow your YouTube channel (it’s helped me!)


Check out some of my other lessons.

Medical Terminology - The Basics - Lesson 1:

Chloroquine/Hydroxychloroquine and SARS-CoV-2 (COVID-19) - Mechanism of Action

Remdesivir and SARS-CoV-2 (COVID-19) - Mechanism of Action

Upper vs. Lower Motor Neuron Lesions:

Introductory lesson on Autophagy (Macroautophagy):

Infectious Disease Playlist

Dermatology Playlist

Pharmacology Playlist

Hematology Playlist

Rheumatology Playlist

Endocrinology Playlist

Nephrology Playlist


**MEDICAL DISCLAIMER**: JJ Medicine does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. Information presented in these lessons is for educational purposes ONLY, and information presented here is not to be used as an alternative to a healthcare professional’s diagnosis and treatment of any person/animal.

Only a physician or other licensed healthcare professional are able to determine the requirement for medical assistance to be given to a patient. Please seek the advice of your physician or other licensed healthcare provider if you have any questions regarding a medical condition.


*Although I try my best to present accurate information, there may be mistakes in this video. If you do see any mistakes with information in this lesson, please comment and let me know.*

I am always looking for ways to improve my lessons! Please don't hesitate to leave me feedback and comments - all of your feedback is greatly appreciated! :)

Thanks for watching! If you found this video helpful, please like and subscribe!