Malaria prophylaxis

Malaria prophylaxis helps stop people from getting malaria, a sickness caused by tiny creatures called Plasmodium that spread through the bites of special mosquitoes called Anopheles. To stay safe, people can avoid mosquito bites and take special medicines before, during, and after being in places where malaria is common. These medicines are very important for travelers going to areas where malaria is always present, as well as for some people who live there.

Scientists are working hard to create malaria vaccines, but more work is still needed to control malaria better. Even though there are challenges, like not enough money and some people not trusting certain medicines, programs are trying to teach more people about how to prevent malaria in many countries.

People who grow up in places where malaria is common might have some natural protection, but this protection can go away if they leave those areas for a while. If they return, it’s very important for them to take the right steps to stay safe from malaria.

Strategies for prevention

To stay safe from malaria, it’s important to avoid mosquito bites and use special medicines. Wearing clothes that cover your skin, using bug spray, and sleeping under special nets can help keep mosquitoes away. The World Health Organization suggests these methods along with medicines to stop malaria, especially in places where the disease is common.

Mosquitoes that carry malaria bite people, so stopping them from biting is key. Using nets treated with chemicals, sprays like DEET or picaridin, and wearing long sleeves and pants can make a big difference. Spraying insecticides inside homes also helps in areas where malaria is often found. These steps are especially useful where medicines might not work as well.

Medications

When choosing a medicine to help prevent malaria, it is important to think about the risk of getting sick and the possible side effects of the medicine.

Some medicines work by stopping the malaria parasite after it has entered the blood. These include chloroquine, proguanil, mefloquine, and doxycycline. They need to be taken for four weeks after leaving an area where malaria is common.

Other medicines can stop malaria before it even reaches the blood. Malarone and primaquine are examples of these. These can be stopped one week after leaving the area.

Different places may need different medicines, and the best choice depends on the person taking it and where they are traveling to. Health organizations like the WHO, UK HPA, and CDC give advice on which medicine to use.

Vaccines

Main article: Malaria vaccine

In November 2012, results from a big test showed that a new malaria vaccine called RTS,S could help protect young babies from getting very sick with malaria. It worked best for babies older than five months, helping about half of them stay healthy for a year.

This vaccine was made using a part from a virus called hepatitis B surface protein mixed with pieces of the malaria germ sporozite. It also has a special helper chemical to make the body fight off the sickness better. Two groups, PATH and GlaxoSmithKline, worked together on it, spending lots of money, and got extra help from the Bill and Melinda Gates Foundation.

In places where malaria is common, doctors also give special medicines to help stop the sickness, especially for babies and pregnant women. This is part of the big plan to keep everyone safer from malaria.

Barriers to prevention

Getting people to prevent malaria can be hard because of two big reasons: money problems and cultural beliefs.

Sometimes, money meant for stopping malaria gets lost or used the wrong way. This has happened in places like Uganda, Burkina Faso, and Nigeria. Without enough money, it’s hard to buy things like mosquito nets or medicine.

Some communities also have beliefs that make it hard to use malaria prevention methods. For example, some people don’t fully understand how malaria spreads or don’t trust certain medicines. Efforts to teach communities more about malaria have helped raise awareness, especially when local leaders and educators are involved. But for these efforts to keep working, programs need to include everyone in the community, not just a few people.

History

Malaria is one of the oldest known diseases, affecting humans for about 10,000 years, especially after farming began. Ancient writings from ancient Egypt, India, and China mention this illness, showing it occurred in many places.

The first known treatment for malaria was quinine, taken from the bark of the Cinchona tree. People in Ecuador and Peru used it for fevers, and in 1633, a monk from Lima, Peru wrote about it helping malaria. By the mid-1800s, the Dutch grew many cinchona trees and controlled most of the world’s supply.

In the early 1900s, new medicines were created. During the First World War, German scientists made the first synthetic antimalarial drug. After the Second World War, American scientists developed another important medicine called chloroquine.

In 1955, the World Health Organization tried to remove malaria worldwide. It worked well in some places like Brazil, the US, and Egypt, but not everywhere. Today, doctors still work to control malaria, though some parasites have become resistant to medicines.

The CDC gives advice to travelers about malaria risks in different countries.