Monomelic amyotrophy (MMA) is a rare motor neuron disease first described in 1959 in Japan. Its symptoms usually appear about two years after adolescent growth spurt and is significantly more common in males, with an average age of onset between 15 and 25 years. MMA is reported most frequently in Asia but has a global distribution. It is typically marked by insidious onset of muscle atrophy of an upper limb, which plateaus after two to five years from which it neither improves nor worsens. There is no pain or sensory loss associated with MMA. MMA is not believed to be hereditary.Both the names for the disorder and its possible causes have been evolving since first reported in 1959. It is most commonly believed the condition occurs by asymmetrical compression of the cervical spinal column by the cervical dural sac, especially when the neck is flexed. However, the disease is uncommon and diagnosis is confused by several atypical reports. Symptoms
In terms of the signs and symptoms that are consistent for an individual who has monomelic amyotrophy are the following (although this does not reflect a complete list):

Initially most people notice weakness in one hand; they may feel contracture of middle and ring finger and notice a thinning of the subdigital palm of the affected fingers. Progress of the condition varies, and weakness in the arm ranges from minimal to significant. Fasciculations are uncommon (>20%); increased weakness under cold conditions is commonly reported (cold paresis).
This was a cell-free vaccine in distinction to the live-cell Pasteur-style vaccine previously used for veterinary purposes. It is now manufactured by Porton Biopharma Ltd, a Company owned by the UK Department of Health. AVP is administered at primovaccination in three doses with a booster dose after six months. The active ingredient is a sterile filtrate of an alum-precipitated anthrax antigen from the Sterne strain in a solution for injection. The other ingredients are aluminium potassium sulphate, sodium chloride and purified water. The preservative is thiomersal (0.005%). The vaccine is given by intramuscular injection and the primary course of four single injections (3 injections 3 weeks apart, followed by a 6-month dose) is followed by a single booster dose given once a year. During the Gulf War (1990–1991), UK military personnel were given AVP concomitantly with the pertussis vaccine as an adjuvant to improve overall immune response and efficacy. American anthrax vaccines
The United States undertook basic research directed at producing a new anthrax vaccine during the 1950s and 60s. The product known as Anthrax Vaccine Adsorbed (AVA)—trade name BioThrax—was licensed in 1970 by the U.S. National Institutes of Health (NIH) and in 1972 the Food and Drug Administration (FDA) took over responsibility for vaccine licensure and oversight. AVA is produced from culture filtrates of an avirulent, nonencapsulated mutant of the B. anthracis Vollum strain known as V770-NP1-R. No living organisms are present in the vaccine which results in protective immunity after 3 to 6 doses.