Iraq reported five new cases of the disease, bringing its total to 13, and Qatar reported its first Saturday, leaving Saudi Arabia as the only Gulf state not to have signaled any coronavirus cases.
The majority of infections in other Gulf countries have been linked to visits to Iran or involve people who have come into contact with people who had been there.
Armenia reported its first infection on Sunday, in a citizen returning from neighbouring Iran.
Tehran has ordered schools shut until Tuesday and extended the closure of universities and a ban on concerts and sports events for a week. Authorities have also banned visits to hospitals and nursing homes as the country's case load hit nearly 600.
One Iranian lawmaker, elected in Feb. 21 polls, has died from the disease along with more than 40 other Iranians, and several high-ranking officials have tested positive for the virus.
Azerbaijan said on Saturday it had closed its border with Iran for two weeks to prevent the spread of coronavirus. Two Azerbaijanis who traveled to Iran have tested positive for the disease and quarantined.
Mainland China reported 573 new confirmed coronavirus cases on Feb. 29, up from 427 the previous day, national health officials said on Sunday in China. The number of deaths stood at 35, down from 47 the previous day, taking the toll in mainland China to 2,870.
The epidemic, which began in China, has killed almost 3,000 people worldwide, the ministry said.
Thailand reported its first death from the virus on Sunday, while in Australia, a former passenger on the Diamond Princess cruise ship quarantined off Japan died in the western city of Perth.
Churches closed in South Korea as many held online services instead, with authorities looking to rein in public gatherings, as 376 new infections took the tally to 3,526 cases.
