Malaria, a parasitic disease caused by Plasmodium parasites infecting the human body, is the biggest problem facing the development of East African colonies.

Daytime temperatures in the East African colonies remained around 20 degrees Celsius all year round, and in the coastal areas around 30 degrees Celsius.

Ideal for mosquitoes, malaria is transmitted by the bite of Anopheles mosquitoes.

Therefore, in areas where mosquitoes are more rampant, the more widespread malaria spreads, especially in this era, people do not know that malaria is transmitted by mosquitoes.

It is not possible to stop the transmission of malaria at its roots, and malaria is widespread in tropical to subtropical regions.

In the early days, the East African colonies were developed, and the immigrants suffered greatly, even under the mandatory orders of the East African government, the sanitation and living environment were greatly improved.

It didn't work out much, because in the early days East Africa was a large wasteland, lush with vegetation, especially during the rainy season, when the weather was hot and humid, and mosquitoes grew rapidly.

However, when immigrants first arrived, the number of immigrants was still small, and it was naturally impossible to change the living environment quickly, so many people were recruited, and many were taken away by malaria and other tropical diseases.

Fortunately, the immigrants who were able to survive in the Far East, and crossed the ocean, all the way, have never seen any strong winds and waves.

Like the black slaves who went to America through the slave trade, they were the physically able-bodied part of the black people who were selected by nature and artificiality.

The same is true for the Far Eastern immigrants who were able to survive to East Africa, of course, in order to ensure the survival rate of the immigrants, the conditions of their transport ships were much better than those of black slaves.

Then, with the gradual increase in immigration and the development of urban villages in East Africa, the living conditions in East Africa slowly improved.

Under the command of Ernst's command, a large-scale mosquito eradication campaign was launched in East Africa, which had been going on since the beginning of the colony of East Africa.

The vegetation around the settlements was burned to fill in the puddles to reduce the living environment for mosquitoes, and biological control was carried out on the water bodies of the colonies, and fish and frogs were cultivated on a large scale to reduce the number of mosquito larvae.

With the beginning of the development of the colony, the quality of life in the colony has also improved significantly, especially tropical diseases such as malaria and dengue fever, which rely on mosquitoes, because of the development of mosquito control campaigns in the colony, which have also been greatly reduced.

In addition, the colonies forced immigrants to pay attention to hygiene, strengthened the management of the colony's water sources, strictly forbade polluting water sources, did not drink raw water, or simply filtered and disinfected some water bodies.

Feces are also disposed of centrally, and a number of new public toilets have been built in each village to meet the needs of migrants.

Wildlife that could spread diseases was strictly regulated, and immigrants were allowed to hunt to supplement food due to food shortages in the early days, and such practices were banned when food production began in the colonies.

Ernst has always believed that in the past life in Africa, many diseases were entirely caused by Africans themselves, such as AIDS, which was caused by Africans eating local primates.

Whether this statement is true or not, all primates in East Africa (excluding people, of course, if indigenous, say otherwise. As long as it is within the range of migrants (farmland, near roads), the baboons, monkeys, and orangutans that appear are all brutally killed, physically exterminated by the colony with muskets, then burned to ashes with fire, and finally buried (remote mountains, forests and deep savannahs are not included, leaving the future as ecological reserves).

This is to prevent some people from eating it, after all, the immigrants used to come hungry, they had eaten both soil and tree bark, and they had enough of living a hard life, so they were afraid that someone would sneak in to add food to them.

In the midst of this strict defense, the living conditions of the East African colonies were naturally greatly improved, and the sanitary conditions were better than in any other place of the time, including Europe.

By the time the Austro-Hungarian and Paraguayan immigrants arrived, East Africa had begun to take shape, and they were all assigned to the cities and villages that had been developed by the Chinese immigrants to dilute the number of Chinese and prevent the formation of interest groups (such as ethnicity) in the future.

Coupled with the increasing number of Chinese and white women intermarrying (Armenia, Paraguay, etc.), the government of the Middle East and Africa has subtly integrated the various ethnic groups, as long as in the future the population integration is completed by removing the cultural characteristics of immigrants from various countries other than German culture.

Although the living conditions in the East African colonies were now much better, tropical diseases were compressed at very low levels at the same latitude.

However, it is impossible to completely eradicate mosquitoes, and mosquitoes are the most important disease carriers, so in addition to continuing to strengthen sanitation and rectification activities, mosquitoes should be repelled and eliminated through scientific means.

Again, people in today's era have no awareness of mosquitoes as disease transmitters.

At the end of the 19th century, scientists in Europe discovered that mosquitoes were the source of transmission of tropical diseases such as malaria, and began to study mosquitoes.

So now, only Ernst and the people of the East African colonies in the whole world believe that mosquitoes are the transmitters of diseases such as malaria.

It's not that Ernst is selfish and doesn't announce it to the world, the problem is that he also knows it through his previous life, and he is not a researcher and authority in this area, and if he says it, he will probably be laughed off.

East Africa is different, illiteracy is everywhere, public opinion is in Ernst's own hands, just make up a few non-existent experts, and let his subordinates follow their own instructions.

In the beginning, people may be reluctant, after all, everything is mandatory, but slowly, with the improvement of health and the environment, malaria and other diseases have really decreased, and immigrants are happy to change (after all, no one wants to die).

The advantages of using Chinese immigrants in the early days were shown, such as strong obedience, weak sense of resistance, and cultural influence by the Far Eastern government, even if there was resentment, so the health improvement campaign imposed by the colonial government of East Africa was successfully implemented.

By the time immigrants from other countries arrived, this model had matured and became the norm and daily routine in the East African colonies, while the number of new immigrants was small at the beginning, so they could only follow it, so paying attention to hygiene became an iron law in the East African colonies, and everyone had to follow the rules.

Immigrants from Germany were about to arrive in East Africa, and there was good news from the Heixingen Foundation.

Pyrethroids were extracted as a result of joint research funded by ERNST and in cooperation with German universities.

As long as the follow-up, according to the mosquito coils of the previous life, according to the gourd painting scoop, and hire professionals to design and produce mosquito coil machines, mosquito coils, the "big killer" of mosquitoes in tropical areas, can be mass-produced.

This will undoubtedly improve living conditions in the East African colonies again and further reduce the spread of diseases such as malaria.

Moreover, the production of mosquito coils can bring a new wealth to the Heixingen consortium, and East Africa itself is a pyrethrum production area, which can further form a perfect industrial closed loop.