Introduction: Coronavirus: Race Against the Pandemic (01:37)

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Wuhan, China is on lockdown due to COVID-19. Cities around the world also implement lockdowns. This film considers questions about the spread of the disease. (Credits)

Wuhan, China (03:55)

In December 2019, many residents become ill. Scientists work to understand the new infectious virus; a seafood market is the common link between patients. Viral mutations increase the success of transmission.

Zoonotic Disease (04:36)

Transmission from animal to human has various consequences. Scientists identify the pathogen as a coronavirus that may have originated from bats and attempt to identify "Animal X." The WHO names the virus SARS-CoV-2 and the resulting disease COVID-19.

Public Health Emergency (02:45)

China and the World Health Organization coordinate efforts to stop the outbreak. Scientists discover the coronavirus' genetic sequence.

COVID-19 Death (05:35)

In Wuhan, a 61-year-old man becomes the first fatality; his wife tests positive. Experts discuss virus transmission. COVID-19 quickly escalates to an epidemic and authorities issue a lockdown, but the virus continues to spread.

SARS-CoV-2 Spreads (04:27)

The first international case of COVID-19 occurs in Thailand. Scientists work to slow the spread and begin contact tracing; some people are asymptomatic. Countries start restricting travel and implement quarantine orders.

Public Health (04:33)

Scientists work to slow the spread of COVID-19 and avoid overwhelming healthcare systems; Wuhan hospitals struggle to cope with patient influx. India prepares for an outbreak. Antibody testing could allow better tracking.

Global Spread (05:09)

By February 2020, the number of global COVID-19 cases reaches over 31,000. Scientists seek to understand disease vulnerability; experts discuss herd immunity. Aggressive testing, tracing, and isolation helps to slow transmission.

Defense Against COVID-19 (08:21)

Scientists hurry to create a vaccine and develop various therapies. Experts discuss viral mutation. Practical interventions include sanitation, increased tracing, and social distancing.

Pandemic (05:23)

In March, viral spread reaches a tipping point. Experts disagree on whether COVID-19 is weather dependent. Virus eradication is a difficult achievement. Case numbers in China begin to decline and restrictions ease.

Credits: Coronavirus: Race Against the Pandemic (01:12)

Credits: Coronavirus: Race Against the Pandemic