"Herd immunity only works when someone in the herd has immunity there is no immunity to this Corona Virus as its genetics come from animals we have no immunity thats why it is spreading so fast."

Those who've been infected with COVID-19 and have recovered, exhibit antibodies specific to the strain they were exposed to. It's possible that those antibodies may not protect against all future strains of the virus (or persist against that specific antigen in perpetuity), but to claim there is no immunity to the virus is not accurate. Researchers are currently harvesting plasma from individuals who have recovered from COVID-19 to use as models for vaccines. Herd Immunity refers to a critical mass of a population (often cited in literature as 60% to 65% of a population) who have either developed or have been administered antibodies (i.e. vaccinations), such that the antigen (in this case COVID-19) is "insulated" from other members of the herd from a transmission standpoint. It's not a reference to a person, but a sub population. Herd Immunity is a relatively slow process to develop (in human terms) and does not insure against future infections of the same antigen. There's still a lot we don't know about this specific Coronavirus, but let's take some comfort in the knowledge we do have.

Completely agree about the risk to the BVI vs. the rest of the World and happy to see them taking the steps they have to try and mitigate the threat.