But it's not one virus, it's four, and the same protection that gives you the antibodies and protects you from the same virus that you had before actually makes you much more susceptible to the other three.
Men det er ikke et virus, det er fire, og den samme beskyttelse der giver en antistofferne og beskytter en fra den samme virus som man havde før, gør en faktisk mere modtagelig overfor de andre tre.