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MulhollandDr4kSB_pls t1_ivehgta wrote

Reply to comment by provocative_bear in We know about viruses, bacteria and other microorganisms evolving to better infect other organisms. Consequently, diseases change too to some extent. Are there any examples of human bodies evolving to fight against these disease causing agents? by ha_ha_ha_ha_hah

Another example is Thalassemia, a sickness where blood cells have a different structure, protecting the affected from malaria.

Unfortunately, if 2 people with thalassemia (minor) have a child, there will be a 25% chance the kid will have a for of thelassaemia major, which means they need a blood transfusion every few months, otherwise they will die.

This is why in countries where malaria is prevalent, couples are encouraged to do a blood screening before having children to prevent this scenario.

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Dr_JA t1_ivejqyy wrote

In some countries you cannot get married before getting tested as a couple. Testing is mandatory.

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[deleted] t1_ivepumj wrote

[removed]

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Dr_JA t1_iveqwym wrote

Absolutely true. However, I think the countries that implement this specific mandatory screening might have issues that are further down slippery slopes...

I just wanted to highlight that this genetic condition, even though relatively unknown in the US/EU, has consequences even for many people in other countries.

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mitharas t1_iveuzzl wrote

> This is why in countries where malaria is prevalent, couples are encouraged to do a blood screening before having children to prevent this scenario.

So when the test indicate the above scenario, people just... don't have offspring? This seems like a rather volatile social situation.

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cathbad09 t1_ivf09k5 wrote

If I had a chance of bringing a child into the world with some genetical condition I’d want to factor that into my decision making

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Cherry5oda t1_ivf6u2k wrote

According to Wikipedia in Iran they are directed to genetic counseling if they are carriers. In India the testing is voluntary and marriage is discouraged if they are both carriers.

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MulhollandDr4kSB_pls t1_ivfczif wrote

Either that or adoption or artificial fertilization. Or they decide to get children anyway.

But at least they can consult with a doctor and make an informed decision whether to take the risk or not.

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fastspinecho t1_ivfnvu8 wrote

Or they could get prenatal screening after pregnancy.

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