The best replacement for sickle cell is malaria.

The best alternatives to sickle cell are rated as following:
★★★★★  malaria
★★★★  thalassemia
★★★  normal cell
  normal rbc
  anemia
  beta thalassemia
  g6pd
  osteomyelitis

Your alternative for sickle cell is not listed? Suggest!
Speaking about sickle cell, one probably shouldn't forget about thalassemia.

Other search terms related to sickle cell and their ratings are:
★★★★★ thalassemia
★★★★ priapism
★★★★ acute chest syndrome
★★ dactylitis
★ alpha thalassemia
You have in mind a companion for sickle cell and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of sickle cell in all years. Click on graph for more.
sickle cell
malaria
thalassemia