text_1: Patients with microcytosis and higher erythrocyte count are more vulnerable to severe malarial anaemia when infected with Plasmodium falciparum.
text_2: Alpha(+)-thalassaemia homozygosity confers considerable protection against severe malaria, including severe malarial anaemia (SMA) (Hb concentration < 50 g/l), but does not influence parasite count.