New research shows antibodies in recovered COVID-19 patients lasting up to eight months after infection, which bodes well for future vaccines, experts say.

As Donald Trump claims he's 'immune' to COVID-19, a team of Ottawa researchers hope to answer questions around immune response to the novel coronavirus.

Trump is now telling his supporters who have contracted COVID-19 that they are immune, but experts say there's not enough science to support his claims.

The case of a man in the United States infected twice with COVID-19 shows there is much yet to learn about immune responses and also raises questions over vaccination, scientists said on Tuesday.

The development has fueled fears about the effectiveness of potential vaccines against the virus.

The findings indicate the disease may continue to spread amongst the global population despite herd immunity, the researchers suggest.

The findings come from a preliminary case study on coronavirus antibodies that has not been yet peer-reviewed.

Public health officials said there were no new cases of COVID-19 to report in Manitoba Sunday.

A small study suggests that people develop neutralizing antibodies after they recover from COVID-19, but many key questions remain.

There's hope the virus that causes COVID-19 behaves like other coronaviruses such as SARS and MERS, said Jason Kindrachuk.