ABSTRACT
Coronaviruses have a high evolutionary capacity which has led to their very large genetic diversity. Their prevalence in nature is very high and they can infect a wide spectrum of hosts including mammals (including humans) and birds. To date, six porcine coronaviruses have been identified. Two of which were responsible for severe epizootics in pigs with a major impact in the global swine industry in the 60's to 80's for porcine transmissible gastroenteritis virus and since the 2010's in China and 2014 in North America for porcine epidemic diarrhoea virus. The latter has also become the third most important pathogen for pigs in China after the African swine fever virus and the porcine reproductive and respiratory syndrome virus. This review summarizes the latest developments in scientific knowledge of these porcine coronaviruses.