Question

Are microorganisms harmful to us?​

Answer 1

A few harmful microbes, for example less than 1% of bacteria, can invade our body (the host) and make us ill. Microbes cause infectious diseases such as flu and measles. ... Different diseases are caused by different types of micro-organisms. Microbes that cause disease are called pathogens.

Answer 2

Answer:

Some are, Some are not..