The 93-year-old monarch drew on her experience in World War II, offering a message of hope to people forced to separate from family and friends.
The monarch will likely laud the efforts of frontline workers fighting against COVID-19.
The heir to the British throne said he was "enormously touched" to have been asked to open the hospital that was built in just nine days.
The pledge came on the day the UK recorded more than 500 daily deaths for a second consecutive day.
Coronavirus has claimed thousands of lives, with Spain and Britain seeing the highest number of daily fatalities yet.
Authorities had registered 537 deaths and 20,081 cases across Latin America by Wednesday afternoon.
The Philippines has so far detected 2,311 cases and reported 96 deaths.
UK ministers have been put on the back foot as criticism over the lack of testing grows.
Rupert Murdoch's News Corp said papers in New South Wales, Victoria, Queensland and South Australia would cease printing and move online.
Guterres calls on nations to show solidarity, forget political games and understand that it is humankind that is at stake for an effective response.
The US has registered a record 865 deaths in 24 hours -- taking its death toll to 3,873.
44-years of marriage came to a tragic end when a heated argument led to the death of a 67-year-old woman in Wales.
The teen was reported missing after A-Level exams were cancelled due to the COVID-19 lockdown.
A woman in her 80s was found dead in her home while her disabled husband was found with serious stab wounds.
After weeks of a national lockdown in Italy, signs were emerging that drastic action could be slowing the spread of the disease.
Australians aged over 15 consume an average 12.6 litres of alcohol a year.
At his daily briefing, Trump said a large quantity of aid was destined for Italy, which has the world's highest pandemic death toll.
The talks came after criticism that the G20 has been slow to address the COVID-19 pandemic, which has left more than 37,500 dead worldwide.
They will no longer carry out duties on behalf of Queen Elizabeth II and are giving up their office within the monarchy in Britain.
Nurses told not to wear their uniform outside hospitals after an NHS worker sustained facial injuries after being punched.
COVID-19 has hit the US with explosive force in recent weeks, following a path seen earlier in parts of Asia and Europe.
Sophie Gregoire Trudeau received the all-clear from her physicians on Saturday, the prime minister said, and he himself has no symptoms.
Trump announces "social distancing" guidelines would be in place until at least the end of April.
A convict released on parole is suspected to have killed the daughter of a woman he previously murdered.
For his terror threat and drunken attack on the police officer, the 40-year-old man has been jailed for 26 weeks.
Following quack novel coronavirus preventive techniques, many mothers are leaving onions around the house to "absorb" the virus.
Forecasters suggested such a scenario would have caused huge economic damage and the likely emergence of a hard border with Northern Ireland.
The US has recorded 1,178 deaths, while the global death toll stood at 23,293.
The YouTube and Instagram star released the cringeworthy video of himself triggering comments demanding his arrest.
UN Secretary General Antonio Guterres called for the world to act together to halt the menace.