Viruses are microscopic yet extremely dangerous organisms on this planet. Many viruses cause mild infections; however, several others are known as the deadliest ones. Viruses are obligate parasites, which means that they require a host body to replicate and reproduce as they are completely inactive outside the host cell. Once these viruses enter a host body, they target the vulnerable cells and causes diseases. Viruses have the ability to cause neural, respiratory, cardiovascular, gastroenteritis, pharyngitis, sexually transmitted diseases, eye infections, skin infections and much more.
Viruses come from different families, and there are more than hundreds of virus families that infect humans. With the discovery of every new virus, scientists from all around the world start their research to develop a cure for it. A number of viruses have vaccines against them; however, many are still incurable and cause fatalities.
Some viruses are highly contagious and can lead to an epidemic or pandemic situation if stays incurable. One of the recent and deadliest viruses is Coronavirus which has infected the entire world and caused enormous crises in every country. The infographic below sheds some light at the 11 most lethal viruses in the world, their causes and treatment.
