Timeline of vaccines
Okay kiddo, so a vaccine is like a superhero that helps our body fight against bad germs called viruses and bacteria. Scientists have been working on vaccines for a very long time so that we can protect ourselves from these bad germs.
To make a vaccine, scientists first need to study the virus or bacteria that they want to protect us from. They have to understand how it works and what makes it dangerous to us. Then, they use different methods to create a vaccine that helps our body fight the virus or bacteria without actually getting sick from it.
The first vaccine ever made was for smallpox in 1796 by a man named Edward Jenner. He noticed that milkmaids who caught a similar virus called cowpox didn't get infected with smallpox. So, he took some cowpox from a milkmaid's hand and gave it to a boy. The boy got a little sick from the cowpox but didn't get smallpox after being exposed to it. This was the start of vaccines!
Over time, scientists have made many other vaccines to protect us from different diseases like polio, measles, and chicken pox. It usually takes a few years to create a vaccine because scientists need to test it to make sure it's safe and effective.
Recently, we had a new virus called COVID-19 that started spreading around the world. Scientists had to work really fast to create a vaccine for it because so many people were getting sick. They used a new method called mRNA to create the COVID-19 vaccine. It's been tested and shown to be very effective in protecting us from the virus and many people have already gotten vaccinated.
So, there you have it, kiddo! A timeline of vaccines from the first one for smallpox in 1796 to the latest one for COVID-19 in 2021. Vaccines are important because they help us fight against bad germs and keep us healthy.
To make a vaccine, scientists first need to study the virus or bacteria that they want to protect us from. They have to understand how it works and what makes it dangerous to us. Then, they use different methods to create a vaccine that helps our body fight the virus or bacteria without actually getting sick from it.
The first vaccine ever made was for smallpox in 1796 by a man named Edward Jenner. He noticed that milkmaids who caught a similar virus called cowpox didn't get infected with smallpox. So, he took some cowpox from a milkmaid's hand and gave it to a boy. The boy got a little sick from the cowpox but didn't get smallpox after being exposed to it. This was the start of vaccines!
Over time, scientists have made many other vaccines to protect us from different diseases like polio, measles, and chicken pox. It usually takes a few years to create a vaccine because scientists need to test it to make sure it's safe and effective.
Recently, we had a new virus called COVID-19 that started spreading around the world. Scientists had to work really fast to create a vaccine for it because so many people were getting sick. They used a new method called mRNA to create the COVID-19 vaccine. It's been tested and shown to be very effective in protecting us from the virus and many people have already gotten vaccinated.
So, there you have it, kiddo! A timeline of vaccines from the first one for smallpox in 1796 to the latest one for COVID-19 in 2021. Vaccines are important because they help us fight against bad germs and keep us healthy.