The decreasing incidence of infectious diseases
Public health measures were taken after the industrial revolution by western countries to limit the spread of infections. These measures comprised decontamination of the water supply, pasteurization and sterilization of milk and other food products, respect of the cold chain procedure, vaccination against common childhood infections and the wide use of antibiotics. The decline is particularly clear for hepatitis A (HAV), childhood diarrhoea and perhaps even more spectacular for parasitic diseases such as filariasis, onchocercosis, schistosomiasis or other soil-transmitted helminthiasis . In countries where good health standards do not exist, people are chronically infected by those various pathogens. In those countries, the prevalence of allergic diseases remains low. Interestingly, several countries that have eradicated those common infections see the emergence of allergic and autoimmune diseases.
Thank u cervocuit. Ur information helps me to answer my question about why here in Indonesia which most people are lack of hygiene awareness, but they don't develop MS. Could it be the parasite (i don't know whether it's good or bad) have a beneficial effect in reducing the development of autoimmune dieases, such as MS.
U know what? maybe i, compare to other people here in my country, am one of the most hygiene person. I only eat dishes that my mom prepared, i seldom eat outside like in a restaurant or on the streets (before i got diagnosed with MS). I always wash my hands before i eat, still doing it until now. I'm really a hygiene freak u know..hahaha
Thank u mrbarlow for ur information too.