Virus Alive Or Not

Viruses are microscopic parasites responsible for a host of familiar – and often fatal – diseases, including the flu, Ebola, measles and HIV. They are made up of DNA or RNA encapsulated in a protein shell and can only survive and replicate inside a living host, which could be any organism on earth. This means no life form is safe from infection by a virus.

So are viruses ‘alive’? The answer is not as straightforward as you may think.

Since viruses were first discovered in 1892 by Dmitri Ivanovsky, our ideas of what they are have shifted from poisons to biological chemicals. Some years after their discovery, scientists first raised the idea that viruses were living – albeit simple – organisms because they caused diseases like bacteria, which we know to be alive.

However, viruses lack the hallmarks of other living things. They don’t carry out metabolic processes, such as making the energy molecule of life, ATP, and they don’t have cells and therefore the cellular machinery needed to make proteins by themselves. The only life process a virus undergoes independently is reproduction to make copies of itself, which can only happen after they have invaded the cells of another organism. Outside of their host some viruses can still survive, depending on environmental conditions, but their life span is considerably shorter. This complete reliability on a host for all their vital processes has led some scientists to deem viruses as non-living.

Novel Corona virus

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus.

Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment.  Older people, and those with underlying medical problems like cardiovascular disease, diabetes, chronic respiratory disease, and cancer are more likely to develop serious illness.

The best way to prevent and slow down transmission is to be well informed about the COVID-19 virus, the disease it causes and how it spreads. Protect yourself and others from infection by washing your hands or using an alcohol based rub frequently and not touching your face. 

The COVID-19 virus spreads primarily through droplets of saliva or discharge from the nose when an infected person coughs or sneezes, so it’s important that you also practice respiratory etiquette

Thanks,Care Well