Morinaga Milk Arsenic Poisoning Incident
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The Morinaga Milk arsenic poisoning incident occurred in 1955 in Japan and is believed to have resulted in the deaths of over 100 infants. The incident occurred when
arsenic Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but ...
was inadvertently added to dried milk via the use of an industrial grade
monosodium phosphate Monosodium phosphate (MSP), also known as monobasic sodium phosphate and sodium dihydrogen phosphate, is an inorganic compound of sodium with a dihydrogen phosphate (H2PO4−) anion. One of many sodium phosphates, it is a common industrial chemical ...
additive. This incident also led to negative health effects for thousands of other infants and individuals, which has had lingering health effects.


Events

From June 1955, certain infants in western Japan came down with a strange sickness that was characterized by diarrhea or constipation, vomiting, a swollen abdomen, and a darkening of skin color. All of the infants shared the same characteristic: they were bottle-fed powdered milk, which was eventually discovered to be the
Morinaga Milk is a milk products and sweets company based in Tokyo, Japan, in operation since September 1, 1917. Their products include milk products, drinks, candy, confectioneries, and infant formula. Morinaga has distribution agreements with Mondelez Inte ...
brand. News coverage of the rash of infants suffering and dying from the illness did not initially mention Morinaga Milk and one news reporter claimed that they were discreetly told to stop feeding their infant Morinaga Milk brand powdered milk after the child fell ill. The company was not named until August of that year.


Lawsuit

According to William R. Cullen, Morinaga Milk showed little interest over studies of the surviving affected infants, which resulted in some boycotting the company's products during the 1960s. The company was brought to trial; however the
Tokushima is a prefecture of Japan located on the island of Shikoku. Tokushima Prefecture has a population of 728,633 (1 October 2019) and has a geographic area of 4,146 km2 (1,601 sq mi). Tokushima Prefecture borders Kagawa Prefecture to the north, E ...
District Court found them not guilty as well as denying any recompense for the survivors. This decision was subjected to a review by an appellate court in
Takamatsu 270px, Takamatsu City Hall 270px, Aerial view of Takamatsu city center 270px, View from Yashima to Takashima port is a city located in Kagawa Prefecture, Japan. , the city had an estimated population of 414,134 in 190120 households and a popul ...
high court, which resulted in the not guilty verdict being reversed on March 31, 1966. After a rejected final appeal three years later, the Tokushima District Court found the Morinaga Milk's head of factory production guilty and sentenced him to three years in jail.


Long term consequences

Since the poisoning multiple studies have been done on the people who survived the milk poisoning incident. Many have reported that they still suffered chronic health problems and studies have also reported "substantially higher rates of sensory deficits and mental retardation in adolescent survivors of the Morinaga poisonings". A study of them in 2006 showed that many of them still suffered chronic health problems.
Arsenic Arsenic is a chemical element with the symbol As and atomic number 33. Arsenic occurs in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. Arsenic is a metalloid. It has various allotropes, but ...
is a
neurotoxin Neurotoxins are toxins that are destructive to nerve tissue (causing neurotoxicity). Neurotoxins are an extensive class of exogenous chemical neurological insultsSpencer 2000 that can adversely affect function in both developing and mature ner ...
, so a disproportionate amount of them had developmental delays,
epilepsy Epilepsy is a group of non-communicable neurological disorders characterized by recurrent epileptic seizures. Epileptic seizures can vary from brief and nearly undetectable periods to long periods of vigorous shaking due to abnormal electrical ...
, and lower IQ scores. They were also below average height. During the civil suit process, the committee selected to make a ruling against the Morinaga company decided that the aftereffects of the victims were not a product of arsenic poisoning. Instead, they insisted that they were due to some previous illness. The outcome of this was that parents were forced to accept their babies’ misfortune as if it was some kind of natural disaster and take responsibility for ongoing treatment. The committee intentionally tricked the public into believing that the aftereffects were the result of an unfortunate natural disaster rather than a perpetrated crime. In April 1974, the Hikari Foundation was established in order to help the Morinaga poisoning victims. By the end of March 1983, there were 13,396 victims of the Morinaga milk poisonings, and 6,389 of these were in communication with the Hikari Foundation. The work of the Foundation centred mostly on the development of the victims' independence as well as on creating social conditions for that development. The members of the Foundation were mostly parents that had been involved with the protection association.


See also

* 1858 Bradford sweets poisoning *
1900 English beer poisoning In 1900, more than 6,000 people in England were poisoned by arsenic-tainted beer, with more than 70 of the affected dying as a result. The food safety crisis was caused by arsenic entering the supply chain through impure sugar which had been mad ...
*
Toxic oil syndrome Toxic oil syndrome (TOS) or simply toxic syndrome (Spanish: ''síndrome del aceite tóxico'' or ''síndrome tóxico'') is a musculoskeletal disease. A 1981 outbreak in Spain which affected about 20,000 people, with over 300 dying within a few m ...
* 1985 diethylene glycol wine scandal * 2008 Chinese milk poisoning


References

{{Coord missing, Japan 1955 in Japan 1955 health disasters Health disasters in Japan Mass poisoning Milk Scandals in Japan Arsenic poisoning incidents