ALTARIAN ENCEPHALITIS: retrovirus that integrates itself into the hosts DNA, 
 lying dormant for years and can activate at any time without warning. Symptoms 
 include a pyrexic and comatose state, long term memory loss and a gradual 
 synaptic degradation

APHASIA: is a dysfunction of certain brain centers affecting the  ability to communicate in a coherent manner. Different forms of aphasia  exist.

APHASIA VIRUS: was created by Bajoran a scientist, intended to be  used as a terrorist weapon against the Cardassians. The microbe would have  been delivered through an aphasia device planted in a food replicator by the  Bajoran underground. Once contracted, the virus would find its way to  temporal lobes and disrupt normal communication processes, causing unusual  disabilities that eventually will cause death.

ANDRONIAN ENCEPHALITIS:  influenza like disease transmitted by airborne 
 particles. Can be deadly if left uncontrolled.

BARCLAY'S PROTOMORPHIC SYNDROME: Resultant from the activation of dormant T- Cells upon the redundant DNA codes of every humanoid. As a result patients de- evolve, via a spread of the altered DNA through the immune system.

BENDII SYNDROME: Rare illness that affects Vulcans over 200 yrs of age. 
 Symptoms include gradual loss of emotional control, bursts of emotion and  anger (which may be telepathically transferred to others). Diagnosis is  achieved by taking a tissue sample of the hypothalamus.

CARTALIAN FEVER: Deadly virus disease. 

CORRELLIUM FEVER: is a disease that broke out on planet Nahmi IV (2366).

DOREK SYNDROME: A rare, incurable, fatal disease which strikes, one out of 
 every five million Ferengi.

EOSINOPHILIA: is an abnormally high count of cerium eosinophils, a  type of white blood cell in humanoids.

HOLODICTION: Psychological condition, recognized by the patient’s addiction to 
 holodeck simulation.

HYPERACCELERATION: is a biochemical condition that plagues people due to radiation permeating water supplies. Hyper-acceleration of biological processes caused an individual to experience one second as if it were an  entire hour. Outsiders who were accelerated quickly burned out, dying in a  very short period of time due to cell damage. To a normal, none accelerated  person sounds very much like an insect.

IRESINE SYNDROME: is a very rare neurological disorder in humanoids characterized by a peculiar electropathic signature in the thalamus, and a  severely decreased histamine count. Victims first disorder would fall suddenly  into a coma for approx 72 hours. Diagnosis could be confused by the presence  of any of 22 different substances that left electropathic residue resembling  that of this disorder.

IVERSON'S DISEASE: Chronic disease, causing fatal degradation of muscular 
 functions in humans. No cure exists.

NEURAL DEPLETION: is complete loss of electrochemical energy of a human brain, resulting in the death of a victim. Some species actually derive this energy to digest.

NEURAL METAPHASIC SHOCK: in potentially fatal failure of the neurological 
 system in humanoids. 

NITROGEN NARCOSIS: is a hazard of deep-sea diving. It is a cause of the replacement of oxygen in oxyhaemoglobin with nitrogen. The resultant  anoxia produced disorientation, hallucination and lack of judgment in the  victims. This phenomenon is similar to temporal narcosis.

ORB SHADOW: Psychedelic reaction to a neuro peptide excess that may follow 
 months to years after an Orb encounter. Associated with Bajoran theology of 
 the Orbs. 

ORKETT’S SYNDROME: Childhood hematopathogenic common throughout Bajoran  refugee. Among the symptoms was an alteration of erythrocytic marker factors. Thousands of Bajoran children died. The preferred treatment often involved 
 bone marrow transplantation procedures. The disease was common enough to be 
 well-documented. 

PSI 2000 VIRUS: a water-based disease organism originally found on planet PSI 2000 in 2266. This virus affects people by causing suppression of  their inhibitions, and ultimately their deaths.

RUGELAN FEVER: A disease which causes a deep coma in Trills.

SOMATOPHYSICAL FAILURE: in humanoid physiology, is the collapse of
 all bodily systems. I'm afraid, to my knowledge, there is little one can do  besides Cordrazine and hope. In nearly all cases, the subject dies.

TAHITI SYNDROME: is a term for human longing for a peaceful, idyllic natural setting when suffering from the stresses of modern Starship life. This  is common's experienced by Starship Captain, send them into a holodeck every  now and then =).

TRANSPORTER PSYCHOSIS: is a rare medical disorder caused by a
 breakdown of neurochemical molecules during transport. Transporter psychosis 
 was first diagnosed in 2209 by researchers. The condition affected the higher  brain functions, as well as autonomic systems and body motor functions.  Victims were found to suffer from paranoid delusions, multi-infarct dementia.  tactile and visual hallucinations, and psychogenic hysteria. Peripheral  symptoms included sleepless, accelerated heart rate, myopia, muscular spasms,  and dehydration. This problem was eliminated with the development of the  multiplex pattern buffer, found in UCIP transporters to Larosian Virus - Mild  disorder, commonly recognized by a subjects amorous behavior and other out of  the normal behavior.

TUVAN SYNDROME: A degenerative, incurable neurological disease which affects 
 mainly Vulcans, Romulans, and Riggelians. In the very early stages, the  patient’s eyelids are slightly displaced, facial muscles are weakened, and  respiration is irregular. Loss of motor skills occurs in 10-15 years; life  expectancy is 20-25 years. In less then 5 percent of the cases, the disease  can accelerate without warning.

YARIM-FEL SYNDROME: A terminal illness affecting Cardassians; it attacks the 
 digestive tract, circulatory and respiratory systems, and cartilaginous  tissues. It can be treated with hexagen therapy or neuro-regeneration  procedures. There is no cure.