Viral infections are due to the presence of a virus in the body. Viruses are made of nucleic acids that are surrounded by a protein coat. Viruses cannot reproduce by themselves. For this reason, many scientists consider viruses to be nonliving. Viruses are like a parasite to body cells that they use as a host. They use your body cells to reproduce via either the lytic or lysogenic cycles. The lytic life cycle of a virus causes body cells to rupture, or lyse. As more body cells are ruptured, the infected individual is weakened and becomes ill. Below is a list of viral infections.
- The common cold
- The flu (influenza)
- Chickenpox
- Herpes
- AIDS
- HIV
- Mumps
- Measles
- Shingles
- HPV
- Rubella
- Viral pneumonia
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