Name two diseases caused by viruses?

Two examples of diseases caused by viruses are:

1. Influenza (Flu): Influenza is a respiratory illness caused by influenza viruses that infect the nose, throat, and sometimes the lungs. It is a highly contagious disease that can spread through respiratory droplets when an infected person coughs, sneezes, or talks. Symptoms may include fever, cough, sore throat, runny nose, muscle aches, fatigue, and headache.

2. COVID-19: COVID-19 is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is a respiratory illness that can affect the lungs, airways, and other organs. Common symptoms include fever, cough, shortness of breath or difficulty breathing, fatigue, muscle or body aches, headache, loss of taste or smell, sore throat, congestion or runny nose, nausea or vomiting, and diarrhea.