Halley's Comet is a periodic comet visible every 74-79 years, with no threat to Earth.
Cholera, caused by bacteria, remains a global health concern needing collective action for eradication.
Deep dives
Reviewing Hayley's Comet
Hayley's comet, also known as halley's comet, is a periodic comet visible to the naked eye every 74-79 years. Mark Twain famously witnessed the comet's appearance and predicted his own passing with it. Edmund Halley observed the comet's return and correctly predicted its future orbits. Despite its historical significance, it poses no threat to Earth.
Cholera: A Deadly Bacterial Infection
Cholera, caused by the vibrio cholerae bacterium, has plagued humans for centuries. Outbreaks ravaged populations during global pandemics, leading to thousands of deaths. Cholera is primarily spread through contaminated water sources, and its symptoms include severe diarrhea and vomiting. Efforts to combat cholera have led to improved understanding, treatments, and prevention methods.
Interconnectedness and Global Impact of Cholera
Cholera remains a global health concern, impacting poorer communities disproportionately. The disease thrives due to the interconnected nature of human populations. While advancements have been made in treatment and prevention, access to clean water remains a challenge for millions. The responsibility for eradicating cholera lies with the collective actions of humanity.
John Green reviews Halley's Comet, a celestial body visible from Earth once in a lifetime, and cholera, an infection caused by bacteria and people. Thanks to audible for sponsoring today's episode: http://audible.com/anthro
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