So this is one of the greatest services of science to humanity. A hero whose discovery is almost a hundred years old, the world changed history a few years after its discovery when it came to the market for patients. According to estimates, the lives of 20 crore people were saved by his arrival. 18 percent of soldiers who died in

 So this is one of the greatest services of science to humanity. 

A hero whose discovery is almost a hundred years old, the world changed history a few years after its discovery when it came to the market for patients. According to estimates, the lives of 20 crore people were saved by his arrival. 

18 percent of soldiers who died in

World War II died of infection from wounds, but after this hero, that number dropped from 18 percent to just 1 percent. 

Before this hero (and his later colleagues) came along, 90% of children died from bacterial meningitis. 

One in 20 children used to die before their first birthday, but now the number is limited to three in 1,000. 

This hero also broke Pneumonia's back. 

Before it came, even a slight cut or wound was fatal

But now we don't have to face this situation, in which these heroes play a key role along with better ways of living. 

These heroes are "antibiotics" and the one seen in the picture is the first and greatest hero of them all. 

This is "Penicillin G". The word "G" is used here not to honor penicillin, but because of the compound called benzathine, which makes it last longer in the body. 

This penicillin not only cured the infection, but also created a movement among scientists to create more antibiotics. Following this movement, we have developed more than a hundred antibiotics in almost a century. 

Different antibiotics have different chemical structures, and kill bacteria in different ways, or stop the growth and reproduction of bacteria. These antibiotics include antibiotics taken from living organisms as well as antibiotics we make ourselves. 

You may know that penicillin was discovered by Alexander Fleming in a fungus, but other people worked on it until it was extracted from the fungus and made into a usable drug. 

But this first hero of ours (penicillin G) remains mostly empty today. Its use has been quite limited. Because our hero lacked something. One is that it is not formed by stomach acid, so it cannot be taken in the form of a pill and had to be taken in the form of an injection. 

Also, it is narrow spectrum, meaning it only affects certain bacteria. In addition to this, it is short acting, it does not stay long in the body, so its injections had to be done repeatedly, well, that problem was solved because of Benzathine. 

But there is another important problem, which has put antibiotics and medical science in great difficulty today, that is, antibiotic resistance. In which the bacteria has developed immunity not only against this penicillin but also against many other antibiotics and is doing so. 

But even though this hero of ours has not been of much use today and is often short in the market, but his past has been very bright.