VentureBeat reported:

Vaxart receives $3.3M for oral vaccines — San Francisco’s Vaxart, a biotech developing novel adenovirus-based vaccines, raised $2.7 million in a first funding round. Vaxart also received a $600,000 small-business innovation grant from the NIH to assist in developing the company’s vaccine platform.

Vaxart’s vaccine technology involves a non-replicating adenovirus engineered to produce a particular bacterial or viral protein, or antigen, which stimulates an immune response. The vaccine, which consists of the adenovirus and an “adjuvant” designed to enhance the immune response, is packaged in a capsule that can be taken by mouth.

Vaccines that depend on viral “vectors” like adenovirus are promising because they can produce immunity without the need to rely on attenuated or killed disease virus. When injected, however, such vaccines frequently stimulate an immune reaction to the adenovirus itself, which can negate the effect of the vaccine or subsequent booster shots. Vaxart believes that oral delivery can sidestep that problem.

The company’s early candidates include vaccines against avian flu, seasonal flu, and biowarfare agents. Investors in the round included Quantum Technology Partners, Life Science Angels, Bay Partners and Sand Hill Angels.

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