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life expectancy
United States enters World War I. U.S. life expectancy is 54 years of age for women and 48 years of age for men. -
life expectancy fall by 12 years
Spring and fall waves of influenza (”flu”) activity cause the average life expectancy in the United States to fall by 12 years. -
First case of Spanish Flu Discovered
First case of Spanish flu was discovered. It was found in an american who was a World War I veteran living in Kansas -
Third wave
Third wave of pandemic flu activity occurs. Pandemic subsides, but virus (H1N1) continues to circulate seasonally for 38 years. -
First isolation of influenza
First isolation of influenza, proving that flu is caused by a virus not a bacterium. -
H2N2 pandemic
H2N2 flu virus emerges to trigger a pandemic, replacing the 1918 H1N1 pandemic virus. -
annual flu vaccination
The U.S. Public Health Service recommends annual flu vaccination for people at high risk of serious flu complications. -
H3N2 pandemic
H3N2 flu virus emerges to trigger a pandemic, replacing H2N2 virus. -
fully sequenced
Genome of the 1918 pandemic flu virus is fully sequenced. -
Unknown etiology
The World Health Organisation (WHO) was informed of cases of unknown etiology detected in Wuhan City, Hubei Province, China. -
First known death
Chinese state media reported the first known death from an illness caused by the novel Corona virus, a 61-year-old from Wuhan who had underlying health conditions. -
"public health emergency of international concern"
The WHO declared the 2019-nCoV outbreak a "public health emergency of international concern". -
Dr Li Wenliang
Dr Li Wenliang, a Chinese medic who tried to warn about the virus, died from coronavirus. -
US first death
The US reported its first death from COVID-19, a man in his 50s with an underlying health condition. -
"severe and mounting disruption"
The WHO warned of "severe and mounting disruption" to the global supply of personal protective equipment (PPE), putting the lives of healthcare workers at risk. -
Pandemic
The WHO declared a pandemic -
immediate nationwide 'lockdown'
Boris Johnson announced an immediate nationwide 'lockdown' for at least 3 weeks. The WHO's director general said the COVID-19 pandemic "is accelerating". GPs send letters to around 1.5 million people most vulnerable to COVID-19 asking them to self-isolate for the next 12 weeks.