Bacteria & Viruses

February 25, 2021

Our understanding and knowledge of bacteria and viruses is crucial to prevention and control. This has been highlighted during the current Covid-19 pandemic and with this in mind we would like to share a selection of short videos:  


How bacteria and viruses spread;

When someone you come into contact with has a contagious disease, extra precautions need to be taken to prevent spreading the illness. Knowing how bacteria and viruses can spread is the first step to preventing transmission.


How the virus affects the body:

Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment.  Older people and those with underlying medical problems, are more likely to develop serious illness. This short video explains how the COVID-19 virus affects the body:


Herd immunity:

Herd immunity, or community immunity, is when a large part of the population or an area is immune to a specific disease. If enough people are resistant to the cause of a disease, such as a virus or bacteria, it has nowhere to go. This short video explains in more detail how this works:


How the vaccines work:

The NHS is currently offering the COVID-19 vaccine to people most at risk from corona virus and over 18 million people in the UK have now received a COVID-19 vaccination. This short video explains how the vaccines work: