 Using dates of infection estimated from official case data, exponential growth models for infections and reproduction numbers were estimated and investigated with respect to change points . Clear evidence is found of a decline of infections at the beginning of March, which ] ]  ] ] ] can be attributed to relatively small interventions and voluntary behavioral changes. The effects of later interventions remain unclear . Liberalizations of measures did not induce a re-increase of infections.
<clarity>  Using dates of infection estimated from official case data, exponential growth models for infections and reproduction numbers were estimated and investigated with respect to change points . Clear evidence is found of a decline of infections at the beginning of March, which ] ]  ] ] ] can be attributed to relatively small interventions and voluntary behavioral changes. The effects of later interventions remain unclear . Liberalizations of measures did not induce a re-increase of infections.
 Using dates of infection estimated from official case data, exponential growth models for infections and reproduction numbers were estimated and investigated with respect to change points . Clear evidence is found of a decline of infections at the beginning of March, which ] ] ] ] ] can be attributed to relatively small interventions and voluntary behavioural changes. Additional effects of later interventions remain unclear . Liberalizations of measures did not induce a re-increase of infections.