Frequency of Mg, Nya, Sc 2 and Wra antigens and antibodies in central Slovakia.

In randomly selected thousands-sized samples of the Central Slovakian population the following proportions of antigen (antibody) positivity were found: 0% for Mg (0.158% for anti-Mg), 0% for Nya (0.008% for anti-Nya), 0.284% for Sc 2 (0% for anti-Sc 2) and 0% for Wra (0.035% for anti-Wra). The difference between the antigen and antibody occurrence is statistically significant (alpha = 0.01) for Mg as well as for Sc 2. The found Mg and Nya frequency is comparable to that in the world but is significantly lower than in Switzerland and Norway, respectively; the frequency of antigens Sc 2 and Wra in Czechoslovakia is generally significantly lower.