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Schedule of Significant Expense Categories and Consolidated Net Loss (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Research and development expenses	$ 2,165,092	$ 3,293,861
General and administrative expenses	1,980,207	1,717,585
Total operating expenses	4,145,299	5,011,446
Loss from operations	(4,145,299)	(5,011,446)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Research and development expenses	2,165,000	3,294,000
Change Increase (Decrease), Research and development expenses	$ (1,129,000)
Change Increase (Decrease), Research and development expenses, percentage	(34.30%)
General and administrative expenses	$ 1,980,000	1,717,000
Change Increase (Decrease), General and administrative expenses	$ 263,000
Change Increase (Decrease), General and administrative expenses, percentage	15.30%
Total operating expenses	$ 4,145,000	5,011,000
Change Increase (Decrease), Operating expenses	$ (866,000)
Change Increase (Decrease), Operating expenses, percentage	(17.30%)
Loss from operations	$ (4,145,000)	(5,011,000)
Change Increase (Decrease), Loss from operations	$ (866,000)
Change Increase (Decrease), Loss from operations, percentage	(17.30%)
Operating Segments [Member] | Clinical Research [Member]
Segment Reporting Information [Line Items]
Subtotal	$ 846,000	1,335,000
Change Increase (Decrease), Subtotal	$ (489,000)
Change Increase (Decrease), Subtotal, percentage	(36.60%)
Operating Segments [Member] | Clinical Research [Member] | Ovation [Member]
Segment Reporting Information [Line Items]
Subtotal	$ 214,000	287,000
Change Increase (Decrease), Subtotal	$ (73,000)
Change Increase (Decrease), Subtotal, percentage	(25.40%)
Operating Segments [Member] | Clinical Research [Member] | Vaccine [Member]
Segment Reporting Information [Line Items]
Subtotal	$ 58,000	571,000
Change Increase (Decrease), Subtotal	$ (513,000)
Change Increase (Decrease), Subtotal, percentage	(89.80%)
Operating Segments [Member] | Clinical Research [Member] | Other Clinical And Regulatory [Member]
Segment Reporting Information [Line Items]
Subtotal	$ 574,000	477,000
Change Increase (Decrease), Subtotal	$ 97,000
Change Increase (Decrease), Subtotal, percentage	20.30%
Operating Segments [Member] | Non-Clinical R&D and CMC [Member]
Segment Reporting Information [Line Items]
Subtotal	$ 1,319,000	1,959,000
Change Increase (Decrease), Subtotal	$ (640,000)
Change Increase (Decrease), Subtotal, percentage	(32.70%)
Operating Segments [Member] | Non-Clinical R&D and CMC [Member] | Ovation [Member]
Segment Reporting Information [Line Items]
Subtotal	$ 913,000	405,000
Change Increase (Decrease), Subtotal	$ 508,000
Change Increase (Decrease), Subtotal, percentage	125.40%
Operating Segments [Member] | Non-Clinical R&D and CMC [Member] | PlaCCine Vaccine [Member]
Segment Reporting Information [Line Items]
Subtotal		1,215,000
Change Increase (Decrease), Subtotal	(1,215,000)
Operating Segments [Member] | Non-Clinical R&D and CMC [Member] | Manufacturing (CMC) [Member]
Segment Reporting Information [Line Items]
Subtotal	406,000	$ 339,000
Change Increase (Decrease), Subtotal	$ 67,000
Change Increase (Decrease), Subtotal, percentage	19.80%

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