The Collaborative International Dictionary of English v.0.48:

Malarial \Ma*la"ri*al\, Malarian \Ma*la"ri*an\, Malarious
\Ma*la"ri*ous\, a.
   Of or pertaining, to or infected by, malaria.
   [1913 Webster]

   Malarial fever (Med.), a fever produced by malaria, and
      characterized by the occurrence of chills, fever, and
      sweating in distinct paroxysms, At intervals of definite
      and often uniform duration, in which these symptoms are
      wholly absent (intermittent fever), or only partially so
      (remittent fever); fever and ague; chills and fever.
      [1913 Webster] malaria mosquito

The Collaborative International Dictionary of English v.0.48:

Remittent \Re*mit"tent\ (r?-m?t"tent), a. [L. remittens, p. pr.
   : cf. F. r['e]mittent.]
   Remitting; characterized by remission; having remissions.
   [1913 Webster]

   Remittent fever (Med.), a fever in which the symptoms
      temporarily abate at regular intervals, but do not wholly
      cease. See Malarial fever, under Malarial.
      [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

127 Moby Thesaurus words for "malarial fever":
   African lethargy, Asiatic cholera, Chagres fever, German measles,
   Haverhill fever, acute articular rheumatism, ague, alkali disease,
   amebiasis, amebic dysentery, anthrax, bacillary dysentery,
   bastard measles, black death, black fever, blackwater fever,
   breakbone fever, brucellosis, bubonic plague, cachectic fever,
   cerebral rheumatism, chicken pox, cholera, cowpox, dandy fever,
   deer fly fever, dengue, dengue fever, diphtheria, dumdum fever,
   dysentery, elephantiasis, encephalitis lethargica, enteric fever,
   erysipelas, famine fever, five-day fever, flu, frambesia,
   glandular fever, grippe, hansenosis, hepatitis, herpes,
   herpes simplex, herpes zoster, histoplasmosis, hookworm,
   hydrophobia, infantile paralysis, infectious mononucleosis,
   inflammatory rheumatism, influenza, jail fever, jungle rot,
   kala azar, kissing disease, lepra, leprosy, leptospirosis, loa loa,
   loaiasis, lockjaw, madness, malaria, marsh fever, measles,
   meningitis, milzbrand, mumps, ornithosis, osteomyelitis,
   paratyphoid fever, parotitis, parrot fever, pertussis, pneumonia,
   polio, poliomyelitis, polyarthritis rheumatism, ponos, psittacosis,
   rabbit fever, rabies, rat-bite fever, relapsing fever,
   rheumatic fever, rickettsialpox, ringworm, rubella, rubeola,
   scarlatina, scarlet fever, schistosomiasis, septic sore throat,
   shingles, sleeping sickness, sleepy sickness, smallpox,
   snail fever, splenic fever, spotted fever, strep throat,
   swamp fever, tetanus, thrush, tinea, trench fever, trench mouth,
   tuberculosis, tularemia, typhoid, typhoid fever, typhus,
   typhus fever, undulant fever, vaccinia, varicella, variola,
   venereal disease, viral dysentery, whooping cough, yaws,
   yellow fever, yellow jack, zona, zoster