Shall we immunize for every disease?

When we install an app in a computer, it will help run a program smoothly. But we don’t install every app in a computer. Every app will take up some space, clog the system a little bit and slow down the running of the computer somewhat. If we don’t use a program often, we usually rely on the generic browser to perform the task, although it can be less efficient.

Human beings have two set of immune systems, the innate immune system and adaptive immune system. When we get older, we get exposed to more pathogens. Our adaptive immune system gets trained and stronger. With each exposure to new pathogens, our adaptive immune system develops new types of antibodies specifically targeted to that pathogens. But each new antibodies take up some space, clog the system a little bit and slow down the running of the system somewhat. When we get older, our innate immune system, as well as our most other systems, get weaker. It is probably not wise to load all the possible vaccines we can imagine and exhaust the capacity of our bodies.

How to choose which vaccine we should receive? Our bodies are the embodiment of four billion year’s of evolutionary wisdom. They give clues. If a type of antigens poses serious threat to our health, the corresponding antibodies, once generated, often last for a lifetime. For example, smallpox antibodies will last for a lifetime. If some antibodies get weaker or disappear completely soon after generation, it suggests that our bodies don’t regard the corresponding antigens as serious health threat. Our bodies don’t think the benefits of such antibodies justify their costs.

Antibodies against novo coronaviruses usually don’t last very long. Some people who got infected with the viruses will soon be reinfected by the same or similar types of viruses. This suggests that our bodies don’t regard these viruses as serious enough to justify long term antibodies.

Our bodies are not foolproof. Nothing is foolproof. Some suggest that novo coronaviruses could be originated in lab. Our bodies are especially prone to mistakes when dealing with novel creations. This also suggests that it is extremely important to find out the origin of novo coronaviruses. Unfortunately, the majority in the scientific community, out of self interest, are highly hostile to any effort to uncover the truth.

Shall we immunize for novo coronaviruses?