Archive for February, 2025

A Level Biology Revision "Human Immunodeficiency Virus (HIV)"

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You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-biology/

In this video, we look at the Human Immunodeficiency Virus or HIV. First we explore the structure of HIV and see how it is an example of an RNA virus. Next we explore how HIV replicates and how this leads to the symptoms of Acquired Immunodeficiency Syndrome (AIDS). Finally, we look at why we cannot use antibiotics to treat viral diseases such as HIV.

Image credits:

Kaposi’s sarcoma
https://commons.wikimedia.org/wiki/File:Kaposi%27s_sarcoma_lesion.jpg
Photo Credit:Content Providers: CDC/ Dr. Steve Kraus, Public domain, via Wikimedia Commons

Tuberculosis
https://commons.wikimedia.org/wiki/File:Tuberculosis_image1.jpg
bec, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Antibiotics
https://commons.wikimedia.org/wiki/File:Antibiotic_pills.jpg
Maksym Kozlenko, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Antiretroviral drug
https://commons.wikimedia.org/wiki/File:Once-Daily_Antiretroviral_Treatment_(32514170891).jpg
NIAID, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons
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The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and over time acquired immunodeficiency syndrome (AIDS)

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Introduction to Primary Immunodeficiency Diseases

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IDF 2015 National Conference session, “Introduction to Primary Immunodeficiency Diseases” was presented by Dr. Kenneth Paris, MD, MPH, and Dr. Ricardo Sorensen, MD on June 25, 2015.