The Rh blood group system was discovered by Karl Landsteiner and Alexander S. Wiener. With whose blood were they experimenting?

Karl Landsteiner
Karl Landsteiner's sick daughter
Prisoners of Auschwitz
Rhesus Macaque
"Rh" stands for "Rhesus". Due to its relatively easy upkeep in captivity and anatomical closeness to humans, rhesuses have been used extensively in medical research.
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Karl Landsteiner
Karl Landsteiner's sick daughter
Prisoners of Auschwitz
Rhesus Macaque
answers
flagGermany
5%
17%
11%
67%
100
flagthe Netherlands
14%
19%
0%
66%
21
flagPakistan
10%
12%
10%
64%
73
flagNigeria
3%
17%
14%
60%
28
flagItaly
15%
11%
11%
57%
26
flagGreece
11%
27%
5%
55%
18
flagSaudi Arabia
0%
33%
13%
53%
15
flagNorway
6%
25%
18%
50%
16
flagIndia
15%
22%
11%
49%
400
flagSouth Africa
0%
31%
21%
47%
19
flagPoland
9%
26%
17%
45%
21087
flagRepublic of Ireland
0%
45%
8%
45%
24
flagUnknown
12%
16%
28%
44%
25
flagAustralia
8%
26%
21%
40%
79
flagthe United Kingdom
8%
25%
27%
37%
258
flagCanada
10%
32%
23%
31%
64
flagthe United States
8%
30%
28%
30%
752
flagMalaysia
14%
37%
14%
29%
27
flagthe Philippines
14%
38%
25%
22%
63
flagthe United Arab Emirates
31%
31%
18%
18%
16