The Parasite generated a poisonous vapour called the Miasma, which kills anyone it touches. The presence of fog strongly indicated the presence of miasma. Their third album, "The Turgid Miasma of Existence", appeared in June 1986. The atmosphere was infected by miasma, as diseased people were. The Board of Health ultimately attributed the 1854 epidemic to miasma. Snow also argued that cholera was not a product of Miasma. He thought that miasma in Southern China was similar to typhoid fever in Northern China. A former believer in the miasma theory of disease, Whitehead worked to disprove false theories. The word "miasma "comes from ancient Greek and means "pollution". The concept of miasma therefore faded out due to the progress of medicine in China. John Snow was a skeptic of the then-dominant miasma theory. Colonial physicians attributed it to "miasma" or bad air. His beliefs aligned significantly with the school of thought known as the Miasma theory. The miasma theory was accepted from ancient times in Europe and China. Many of the older remedies were based on the miasma theory.