Codagenix Inc. announced favorable safety and immunogenicity data from a Phase I dose-escalation trial of the company’s single-dose intranasal COVI-VAC vaccine, and London-based pHOXBIO Ltd. reported results from a pivotal phase II/III study of the novel prophylactic nasal spray pHOXWELL.

Bharat Biotech’s intranasal Covid-19 vaccine candidate is expected to enter the Phase II portion of a Phase II/III study within the next few weeks. BBV154 marks the second vaccine against the novel coronavirus developed by the India-based company.

Bharat Biotech’s a two-dose, injectable Covid-19 vaccine Covaxin is authorized in India for ages 12 and up. The company is moving forward with a second vaccine against the novel coronavirus with a different mode of administration. 

In a roundup of scientific studies on the novel coronavirus, a small study suggests no traces of mRNA vaccines end up in mothers’ breast milk and a gene called IFI27 that becomes activated early in Covid-19 might help identify people most likely to have contracted the virus after coming in contact with an infected person.