Tanganyika laughter epidemic

1962 outbreak of mass hysteria in Tanganyika

The Tanganyika laughter epidemic was an outbreak of mass hysteria, or mass psychogenic illness, that occurred in 1962 in the village of Kashasha on the western coast of Lake Victoria in the modern nation of Tanzania. The phenomenon spread to several other communities in the region, affecting thousands of people.

Background

In 1962, Tanganyika was a newly independent nation, having gained independence from British colonial rule in 1961. The country was undergoing significant social and political changes, which may have contributed to the psychological stress experienced by its population.

The Outbreak

The laughter epidemic began on January 30, 1962, at a mission-run boarding school for girls in the village of Kashasha. The initial outbreak involved three students who began laughing uncontrollably. The laughter spread rapidly throughout the school, affecting 95 of the 159 pupils, aged 12 to 18. The symptoms included fits of laughter, crying, restlessness, and, in some cases, violence.

The school was forced to close on March 18, 1962, and the students were sent home. However, the epidemic did not end there. The laughter spread to the village of Nshamba, where several of the girls lived. It then spread to other villages and schools in the region, including Bukoba and Ramashenye.

Symptoms and Characteristics

The symptoms of the epidemic included uncontrollable laughter, crying, fainting, flatulence, respiratory problems, rashes, and attacks of screaming. The episodes could last from a few hours to 16 days. The epidemic primarily affected young people, particularly schoolchildren and young adults.

Causes

The exact cause of the Tanganyika laughter epidemic remains unknown. However, it is widely considered to be a case of mass psychogenic illness, a phenomenon where psychological distress manifests as physical symptoms in a group of people. Factors such as stress, anxiety, and social pressures are believed to have played a significant role in triggering the epidemic.

Impact

The laughter epidemic had a significant impact on the affected communities. Schools were closed, and economic activities were disrupted as people were unable to work. The epidemic lasted for about six months, eventually subsiding on its own.

Related pages

• Mass psychogenic illness
• Social psychology
• Tanzania

Gallery

Map showing the location of the Tanganyika region