infection

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How to identify Gram-positive cocci

Posted on by Konstantina Louka

One day, you woke up with a mild irritation on your arm. The skin was red and itchy. You paid no attention. But the next day, you noticed more bumps filled with pus. It looked concerning, so you decided to… Continue Reading →

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What are viruses?

Posted on by Konstantina Louka

Viruses are microscopic parasites whose size belongs to the nanometer scale. They can invade the cells of other organisms in order to reproduce, since they don’t have the ability to do that independently, outside of their hosts. You might be… Continue Reading →