Firm said the five-year partnership with the UK’s Vaccines Manufacturing and Innovation Centre (VMIC) would also help it make other viral vector vaccines.
The measures include a curfew running from 3 pm to 6 am, a suspension of prayers in mosques and a stay-at-home order for public and private sector workers in the Red Sea city whose airport serves pilgrims.
The initial stage of reopening will allow construction and manufacturing to resume. Retail stores will be allowed limited in-store and curbside pickup.
The aviation industry has been among the worst hit by the outbreak, which has dented travel demand and forced major airlines to lay off staff and seek government bailouts.
Britain is one of the worst-hit countries in the world, with a death toll of more than 50,000 from COVID-19, according to a Reuters tally this week based on official sources.
Taiwan's Central Epidemic Command Centre said that it would lift restrictions limiting the number of people who could participate in "daily life and leisure events",
Developing "a vaccine is still the fundamental strategy in our effort to overcome the new coronavirus," Science and Technology Minister Wang Zhigang told a news conference in Beijing.
About 30pc of those cases, or 2 million infections, are in the United States, though the fastest growing outbreak is in Latin America, which now accounts for roughly 16pc of all cases.
The new cases had returned from overseas - five from the United Arab Emirates, two from Kuwait and one from India - and were in quarantine, where most of Thailand's recent cases have been detected.
At least 6,782,890 cases of coronavirus have been registered in 196 countries and territories. Of these, at least 2,943,700 are now considered recovered.