Question

Explain causative agents and spread of diseases for the following in two- three sentences for each:
a) COVID-19
b) Dengue fever


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Answer 1

Answer:

COVID-19 -

Coronavirus disease 2019 or 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.

Dengue fever-

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.

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Answer 2

Answer:

COVID-19 -

Coronavirus disease 2019 or 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.

Dengue fever

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.

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