FACTBOX-Latest on the worldwide spread of the coronavirus

* Jailed Kremlin critic Alexei Navalny has been moved to a sick ward with symptoms of a respiratory illness and has been tested for the new coronavirus, the Izvestia newspaper reported. AMERICAS * Michigan reported a record number of COVID-19 cases on Monday to top the daily tally among U.S. states, about a month after easing restrictions when new cases showed a downward trend. * Colombia will allow private imports of COVID-19 vaccines, the health ministry said on Monday, but the shots must be free for those being inoculated.

The World Health Organization does not want to see vaccination passports as a requirement for travel, partly because of uncertainty over whether inoculation prevents transmission of the virus, a WHO spokeswoman said. Coronavirus-related deaths worldwide have passed 3 million, according to a Reuters tally. DEATHS AND INFECTIONS

* Eikon users, see COVID-19: MacroVitals https://apac1.apps.cp.thomsonreuters.com/cms/?navid=1592404098 for a case tracker and summary of the news. EUROPE

* The European Union has blocked shipments of 3.1 million doses of AstraZeneca's vaccine to Australia and the country has little hope of getting the remaining 400,000 doses it has been pledged on time, a government source said. * British Prime Minister Boris Johnson said he wanted a testing regime for international travel to be easy and cheap, hinting that rapid tests could be used after criticism from the airline industry that current requirements were onerous.

* Britain will start the roll-out of Moderna's vaccine in mid-April, vaccine deployment minister Nadhim Zahawi said, adding that the vaccination program was on track to meet government targets. * Jailed Kremlin critic Alexei Navalny has been moved to a sick ward with symptoms of a respiratory illness and has been tested for the new coronavirus, the Izvestia newspaper reported.

AMERICAS * Michigan reported a record number of COVID-19 cases on Monday to top the daily tally among U.S. states, about a month after easing restrictions when new cases showed a downward trend.

* Colombia will allow private imports of COVID-19 vaccines, the health ministry said on Monday, but the shots must be free for those being inoculated. ASIA-PACIFIC

* Hospitals in Maharashtra are running short of beds, piped oxygen, and a key anti-viral drug as a second wave of coronavirus infections swamps India's richest state, doctors and patients' families said. * New Zealand and Australia will create a "travel bubble" without COVID-19 testing or quarantine from April 19.

* South Korea is considering all options to secure enough vaccine supplies, a top vaccine official said in response to questions about possible export curbs on locally made vaccines. MIDDLE EAST AND AFRICA

* Tanzania's new president, Samia Suluhu Hassan, said that her government would form a committee for scientific research into COVID-19, in a departure from the pandemic-skeptic policies of her late predecessor, John Magufuli. * South Africa has signed an agreement with Pfizer Inc for 20 million dual shot vaccine doses, a government official told Reuters, boosting plans to start mass vaccinations from April.

MEDICAL DEVELOPMENTS * Contract manufacturer Catalent Inc has signed an agreement that will nearly double the U.S. production of Moderna Inc's vaccine, the Wall Street Journal reported, citing people familiar with the matter.

* Valneva reported positive results for its COVID-19 vaccine in early-stage clinical trials and said it planned to launch a Phase Three trial this month. * New data from Israel, where health officials moved quickly to distribute the COVID-19 vaccine from Pfizer-BioNTech, suggests that the vaccination of adults also protects unvaccinated people living around them. ECONOMIC IMPACT

* World stocks hit record highs, supported by strong economic data from China and the United States, while currency and bond markets paused for breath after a month of rapid gains in the dollar and Treasury yields. * An investor morale index in the eurozone rose in April to the highest level since August 2018, driven by an improved view of the current situation, a survey showed.