Scams are widespread, especially on social media.
There’s also a long tradition of smaller organizations collecting money for Palestinian children, and then the money is funneled to Hamas.
If you want to donate, great, but be careful where you send your money. There are legitimate aid organizations as well.
Cadus does fantastic work in Gaza, Ukraine, and elsewhere. They don’t have such a huge overhead of promoters and admin like other organizations.
The tests are not 100 percent.
So if the test is 99%, then you get 100 infected blood donations from 10,000 donors.
Even one blood bag infected with HIV is a disaster.
The additional restrictions on risk groups cuts the risk of false negatives down immensely.
Risk groups typically are: people with often changing sex partners, drug users, prostitutes and their customers, men who have sex with men.
It’s all statistics, not discrimination.
The last time I wanted to donate blood I was rejected because I had three sexual partners over the last three months.
HIV is also not the only possible pathogen in blood donations. High risk groups are also at higher risk for other diseases.