Professor Adrian Martineau of Queen Mary University of London assumes that the protective role of vitamin D levels in the case of COVID-19 is not proven to date (link). However, he advises correcting a vitamin D deficiency to reduce the risk of falling ill with a respiratory infection, including COVID-19. 

Long waiting lists in England for a biopsy appointment have meant that a new guideline for diagnosis has been adopted. 
The people <55 years old having CD symptoms with anti-tissue transglutaminase IgA (tTGA) antibodies >10x upper limit and a positive antiendomysium antibody (EMA) level in the blood can start the SG diet without having a biopsy done. So it is possible that following the current health crisis there will be significant changes in diagnosis. Business to follow at the international level.

Here are 2 recipes from 2 French women very committed to concocting quality gluten-free products.

Faraway destinations are no longer desired as much, so an alternative is needed. Among our French neighbors, a 100% gluten-free address to spend your holidays in peace can do the trick. Here is an address to discover for our celiac members.