Revert "(Temporarily) removed an order-by for timestamp, since it's not present on some models"
Revert "(Temporarily) removed an order-by for timestamp, since it's not present on some models"

This reverts commit 0e8d25c9fcc9db9ecb1a78b16d312e2a873c943d.

ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website,ISIFoundation/influenzanet-website