1) Estimating the effects of non-pharmaceutical interventions on COVID-19 in Europe
2) The effect of large-scale anti-contagion policies on the COVID-19 pandemic
3) Evidence from New Zealand
New Zealand Lifts Lockdown as It Declares Virus Eliminated, for Now
Saying the country had no active coronavirus cases and no new infections, officials declared that the strict clampdown on public life would end.
Lockdowns are a powerful tool
Lockdowns and other distancing measures have had resounding success at thwarting the new coronavirus, according to two independently conducted studies. One found that stay-at-home orders and policies that restrict face-to-face contact were especially effective in 11 European countries, reducing transmission by 81%. The combination of policies aimed at slowing the virus’s spread prevented more than 3 million deaths from the epidemic’s start to early May. Another study that looked at China, the United States and 4 more countries showed that across all 6 countries, anti-transmission measures averted roughly 500 million infections.