I am unaware of ANY vaccine produced that treated ANY Corona Virus ever...

[hlthe2b]

25. You should correct subject line to PREVENT. There ARE Veterinary Coronavirus vaccines

that are effective against Enteric Canine Coronavirus (CCoV) a common cause of diarrheal illness in young puppies, though they do not protect against the respiratory virus Respiratory Canine Coronavirus (CRCoV), The latter was discovered in dogs in England in 2003, usually causing mild respiratory disease,is genetically related to human cold coronaviruses (not COVID-19) and to the bovine coronavirus that causes both respiratory and enteric disease in cattle and other ruminants ((BCoVs), for which there is a vaccine to control the enteric effects, but not the respiratory variant. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4094360/

Cats get a coronavirus that causes FIP (Feline Infectious Peritonitis), again NOT transmissible to other animals for which there is a vaccine that confers some protection in settings with wide spread, but is not considered adequate for use in lower risk settings.

There has long been a swine coronavirus vaccine (enteric) and those against the respiratory coronavirus (for which there are multiple coronavirus variants) in poultry as discussed below and here:
https://www.frontiersin.org/articles/10.3389/fvets.2019.00341/full

Abstract

Severe acute respiratory syndrome (SARS) emerged in China and spread globally as a human pandemic. It is caused by a new coronavirus (CoV) of suspect animal origin. The emergence of SARS stunned medical scientists, but veterinary virologists had previously recognized CoVs as causing fatal respiratory or enteric disease in animals with interspecies transmission and wildlife reservoirs. Because of its public health impact, major efforts are focused on development of SARS vaccines. Occurrence of CoV disease at mucosal surfaces necessitates the stimulation of local immunity, having an impact on the vaccine type, delivery and adjuvant needed to achieve mucosal immunity. Such immunity is often short-lived, requires frequent boosting and may not prevent re-infection, all factors complicating CoV vaccine design. SARS vaccine efforts should be enhanced by understanding the correlates of protection and reasons for the success or failure of animal CoV vaccines. This review will focus on studies of immunity and protection in swine to the enteric CoV, transmissible gastroenteritis (TGEV) versus the respiratory variant, porcine respiratory CoV (PRCV), comparing live, inactivated and subunit vaccines, various vaccine vectors, routes and adjuvants. In addition avian infectious bronchitis CoV (IBV) vaccines targeted for protection of the upper respiratory tract of chickens are discussed. Unfortunately, despite long-term efforts, effective vaccines to prevent enteric CoV infections remain elusive, and generally live, but not killed vaccines, have induced the most consistent protection against animal CoVs. Confirmation of the pathogenesis of SARS in humans or animals models that mimic SARS may further aid in vaccine design and evaluation.

https://www.ncbi.nlm.nih.gov/pubmed/15742624


Bottom line, there are LOTS of coronaviruses and SOME effective vaccines generally for those that cause more enteric illness. Not all coronaviruses cause potentially lethal illness in their hosts, but can serve as good models for vaccine development. But the challenge is signficant and far from a "sure thing." Not to mention that there is a significant risk for what we have seen in the disastrous attempts at a Dengue vaccine, for which there are four distinct serotypes and immunity from infection with one does not prevent later infection with another. That vaccine incorporated components of all four serotypes and induced what is known as antibody-dependent enhancement (ADE), in which the immune response to the first virus amplifies the effect of the second type in an overwhelming and potentially lethal manner.


That said, PLEASE correct your subject line. Vaccines are designed to PREVENT disease by inciting the body's immune system. They are not designed to be "TREATMENTS." This is a serious misunderstanding among the public made worse by Trummp's constant BS.