Syria has received two million doses of cholera vaccines, the first to reach the country during a months-long outbreak, the country's health ministry said Wednesday.

The war-torn country has been suffering from a cholera outbreak since September and has struggled to contain it due to its devastated water and health infrastructure. Syria's Health Ministry has documented 1,556 cases and 49 deaths since then.

Children in school uniforms and toddlers with their parents lined up Monday for polio vaccinations in the Sigli town square on the northern tip of the Indonesian island of Sumatra, after four children were found infected with the highly contagious disease that was declared eradicated in the country less than a decade ago.

The virus was first detected in October in a 7-year-old boy suffering from partial paralysis in the province of Aceh near Sigli, and since then three other cases have been detected, prompting the mass immunization and information drive.

Authorities eased anti-virus rules in scattered areas but affirmed China's severe "zero- COVID" strategy Monday after crowds demanded President Xi Jinping resign during protests against controls that confine millions of people to their homes.

The government made no comment on the protests or criticism of Xi, the most widespread display of opposition to the ruling Communist Party in decades. There was no official word on how many people were detained after police used pepper spray against protesters in Shanghai and struggled to suppress demonstrations in other cities including Beijing, the capital.

Hundreds of people took to the streets in Beijing and Shanghai on Sunday to protest against China's zero-Covid policy in a rare outpouring of public anger against the state.

Residents of some parts of China's capital were emptying supermarket shelves and overwhelming delivery apps Friday as the city government ordered faster construction of COVID-19 quarantine centers and field hospitals.

Uncertainty and scattered, unconfirmed reports of lockdowns in at least some Beijing districts have fueled demand for food and other supplies, something not seen in the city for months.

Pandemic lockdowns are expanding across China, including in a city where factory workers clashed this week with police, as the number of COVID-19 cases hits a daily record.

Residents of eight districts of Zhengzhou, home to 6.6 million people, were told to stay home for five days beginning Thursday except to buy food or get medical treatment. Daily mass testing was ordered in what the city government called a "war of annihilation" against the virus.

The southern Chinese metropolis of Guangzhou locked down its largest district Monday as it tries to tamp down a major COVID-19 outbreak, suspending public transit and requiring residents to present a negative test if they want to leave their homes.

The outbreak is testing China's attempt to bring a more targeted approach to its zero-COVID policies while facing multiple outbreaks driven by fast-spreading omicron variants. China is the only major country in the world still trying to curb virus transmissions through strict lockdown measures and mass testing.

Médecins Sans Frontières /Doctors Without Borders (MSF) is contributing to the national vaccination campaign against cholera launched by the Lebanese Ministry of Public Health’s by vaccinating people in Arsal, Akkar, Tripoli and Baalbek-Hermel in the north and northeast of Lebanon where most cholera cases are registered in the country, a statement said.

“600,000 cholera vaccines received by Lebanon, as first phase procurement, are to be administered in coordination with various international and local actors,” MSF said in a statement.

G20 health and finance ministers launched a $1.4-billion fund Sunday to tackle the next global pandemic ahead of the bloc's leaders gathering for a summit on the Indonesian resort island of Bali but the host's president said it was not enough.

The EU's medicines watchdog on Thursday backed a Covid booster vaccine by French drug maker Sanofi after saying it had given positive results against the Omicron variant in clinical trials.