Fusarium isn't a common issue in NY the way it is further south, but it's also not exactly rare. Verticillium is more common, but it doesn't display such drastic "yellow flag" chlorosis the way your plant does. As Bill says, it's hard to look at that photo and not think "fusarium".
Fusarium is soilborne, so bleach spray or any spray won't help it.
I would personally pull the plant, although if the fruit are close to turning, you could leave it a little longer to see whether you can get them to blush. As long as you're not digging in the soil and moving it around, fusarium isn't going to spread like wildfire or anything. After pulling it, take it to your county extension office and get a definite diagnosis. If it's fusarium or verticillium, you'll have to either not grow tomatoes in that location for a few years or grow resistant or grafted varieties. You could also try extensive organic amendment plus some biologicals such as T. harzanium, B. amyloliquifaciens, and other bacterial/fungal root treatments. IIRC, fusarium can be seedborne, so don't save seeds from that plant.
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