Dengue is caused by one of any of four related viruses: Dengue virus 1, 2, 3, and 4. For this reason, a person can be infected with a dengue virus multiple times in his or her lifetime.
Dengue viruses are spread to people through the bites of infected mosquitoes, mainly Aedes aegypti mosquitoes.
Signs and symptoms of dengue are aches and pains (eye pain, typically behind the eyes, muscle, joint, or bone pain), nausea, vomiting, rash
COVID-19
COVID-19 is a respiratory illness caused by a coronavirus called SARS-CoV-2. It is unclear if antibodies created from a COVID-19 infection can provide protection against getting infected again.
The virus that causes COVID-19 is thought to spread mainly through respiratory droplets produced when an infected person coughs, sneezes, or talks.
Symptoms may appear 2-14 days after exposure to the virus. People with these symptoms may have COVID-19 are fever or chills, cough, shortness of breath or difficulty breathing, fatigue, muscle or body aches, headache, new loss of taste or smell, sore throat, congestion or runny nose, nausea or vomiting, diarrhea, etc.
Similarities
Both dengue and COVID-19 can range from mild to critical.
