PetriKey

Disease

Malaria

Anopheles-borne cyclic fever with hemolysis

muh-LAIR-ee-uh

protozoaanophelesmosquitocyclic-fevertropical

High-yield clue

Cyclic paroxysms of fever, chills, and sweats with hemolytic anemia after an Anopheles bite is the classic malaria clue; P. falciparum is the most severe.

Overview

A mosquito-borne protozoal illness from Plasmodium species, studied for periodic paroxysmal fever, timing tied to the red-cell cycle, and falciparum complications.

Classification

  • Protozoal febrile illness
  • Plasmodium infection
  • Anopheles (night-biting) mosquito vector
  • Tropical and subtropical

Lab & identification clues

  • Giemsa-stained thick and thin blood films vocabulary
  • Ring forms and banana-shaped gametocytes (falciparum)
  • Rapid antigen (HRP-2) test concept

Associations

  • Anopheles mosquito transmission
  • Tertian and quartan fever periodicity vocabulary
  • Severe or cerebral malaria and blackwater fever (falciparum)
  • Relapse from dormant hypnozoites (P. vivax and P. ovale)

Commonly confused with

  • Dengue fever
  • Typhoid fever
  • Babesiosis

Your notes

Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.

OpenStax: Microbiology 2e organism classification foundationssourceNCBI Bookshelf: Medical Microbiology organism chapterssourceCDC: CDC disease and public-health topic pagessource