COPENHAGEN, Denmark—Health authorities in Denmark said Friday that they are considering “winding down” the country’s coronavirus vaccination program in the spring and see no reason now to administer a booster dose to children or a fourth shot to any more residents at risk of severe COVID-19. The Danish Health Authority said in a statement outlining its reasoning that the third infection wave in the European nation was waning “due to the large population immunity.” “The very high vaccine coverage in Denmark, especially with the third shot, means that we can cope with increasing infection without getting serious illness,” the government agency said in a statement. Last month, the Danish government said it was offering a fourth vaccine dose to older adults and other vulnerable citizens because the pandemic situation had worsened amid the spread of the Omicron variant of the coronavirus. But a Health Authority assessment concluded that three shots …