Some viruses target bacteria or fungi, which can be harmful to humans. These viruses are called "bacteriophages" or sometimes just "phages".
Yes, but some viruses are more harmful than others.
it can be harmful but we have antibiotics so they aren't as harmful as some viruses.
yes the lichens are harmful but to some humans
Some viruses are beneficial in that they have commercial uses. Examples are tulips with streaks of color. Other viruses cause diseases such as colds, HIV.
because they are harmful
Some viruses target harmful organisms. For example, bacteriophage viruses kill bacteria. Other viruses might kill mosquitoes or weevils or other harmful insects without hurting any other species.
They can cause death and other diseases
Computer viruses have been known to cause millions of dollars worth of damage.
Influenza virus (flu)rhinovirus (common cold)human immunodeficiency virus (HIV)Read more: What_are_some_viruses_that_are_harmful_to_humans
They are harmful because it plants inside of you and it quickly multiply inside your stomach making more viruses
Some bacteria are beneficial to humans, and some bacteria are harmful to humans.