Letters to the Editor

Readers ask about malaria parasites, searching for alien intelligence and more

By Science News Staff

- More than 2 years ago

cover of the November 21, 2020 issue

Lying low

During Africa’s dry season, when mosquitoes are scarce, malaria parasites in human blood turn their genes on and off to keep numbers low so infection doesn’t set off alarm bells for the immune system, Erin Garcia de Jesus reported in “How malaria parasites hide from the human immune system” (SN: 11/21/20, p.