Hi Rachael,

Wilt diseases can be difficult to distinguish. This page may help you figure out if your diagnosis is correct:

https://apps.extension.umn.edu/garden/diagnose/plant/vegetable/tomato/plantwilt.html

This is a good page on fusarium wilt:

https://extension.umd.edu/resource/fusarium-wilt-tomatoes-home-garden/

Regarding edibility, this is a response from a university staffer on a similar question:

https://ask2.extension.org/kb/faq.php?id=477138

This publication mentions other vegetables that can be affected, and how to avoid future infections:

https://content.ces.ncsu.edu/fusarium-wilt-of-tomato

Heirloom tomatoes are especially prone to this problem. "Resistant" varieties mean that a plant is less likely to get the disease, but it's not a guarantee it won't.

Here's a list of tomato varieties and disease resistance:

https://www.vegetables.cornell.edu/pest-management/disease-factsheets/disease-resistant-vegetable-varieties/disease-resistant-tomato-varieties/

Your best strategy is to pull any sick plants now and plant tomatoes elsewhere for the next several years. This fungus lives in the soil for up to ten years. If you have nowhere else to plant tomatoes, try growing them in very large pots, replacing especially the top few inches of soil every year. I've done that and had good success with avoiding reinfection.

Hope this helps. Good luck.