According to this video report, children are indeed being rescued from underground tunnels, and that’s why hospitals are being set up in various places around the planet (including the Comfort and Mercy medical ships)…

Source: https://kauilapele.wordpress.com/2020/04/05/high-velocity-savage-3-31-20-kids-saved-in-new-york-city-a-nurses-account-of-whats-really-going-on-in-central-park/