Women model dresses by designer Hu Sheguang to mark the 100th anniversary of the Communist Party of China, in Wuhan, Hubei province. Life in Wuhan is gradually returning to normal, following the outbreak of Covid-19 there. Getty Images
Women model dresses by designer Hu Sheguang to mark the 100th anniversary of the Communist Party of China, in Wuhan, Hubei province. Life in Wuhan is gradually returning to normal, following the outbreak of Covid-19 there. Getty Images
Demonstrators clash with riot police during a protest against the government in Medellin, Colombia. Three people died on Friday during anti-government protests in the city of Cali. AFP
Demonstrators clash with riot police during a protest against the government in Medellin, Colombia. Three people died on Friday during anti-government protests in the city of Cali. AFP
Supporters of the Malian armed forces gather at Independence square in the capital Bamako to celebrate the recent coup led by the vice president of the transitional government, Col Assimi Goita. AFP
Supporters of the Malian armed forces gather at Independence square in the capital Bamako to celebrate the recent coup led by the vice president of the transitional government, Col Assimi Goita. AFP
An employee of Valle Alto Medical Oxygen plant works with oxygen tanks in Arbieto municipality, 50 kilometres from the city of Cochabamba, Bolivia. There is a shortage of oxygen to treat patients with Covid-19. AFP
An employee of Valle Alto Medical Oxygen plant works with oxygen tanks in Arbieto municipality, 50 kilometres from the city of Cochabamba, Bolivia. There is a shortage of oxygen to treat patients with Covid-19. AFP
A boy looks outside of his window above a street flooded by the overflowing Negro River in Sao Jorge neighborhood in Manaus, Amazonas state, Brazil. Reuters
A boy looks outside of his window above a street flooded by the overflowing Negro River in Sao Jorge neighborhood in Manaus, Amazonas state, Brazil. Reuters
Ko Phyo, 24, a protester who lost a leg after being shot by a soldier during an anti-coup protest, sits in a wheelchair at his home on the outskirts of Yangon, Myanmar. Reuters
Ko Phyo, 24, a protester who lost a leg after being shot by a soldier during an anti-coup protest, sits in a wheelchair at his home on the outskirts of Yangon, Myanmar. Reuters
A photo taken with a drone shows an aerial view of the Yuncong waterfall in Longli County near Guiyang, Guizhou province, China. EPA
A photo taken with a drone shows an aerial view of the Yuncong waterfall in Longli County near Guiyang, Guizhou province, China. EPA
A man carrying a child flees the city of Goma, in the Democratic Republic of the Congo, following warnings that Mount Nyiragongo, 10 kilometres away, may erupt for a second time in just over a week. EPA
A man carrying a child flees the city of Goma, in the Democratic Republic of the Congo, following warnings that Mount Nyiragongo, 10 kilometres away, may erupt for a second time in just over a week. EPA
Residents queue for coronavirus testing in Liwan district in the city of Guangzhou in southern China's Guangdong province, following an upsurge in infections that has alarmed authorities there. AP Photo
Residents queue for coronavirus testing in Liwan district in the city of Guangzhou in southern China's Guangdong province, following an upsurge in infections that has alarmed authorities there. AP Photo
A group relaxes at the bank of the Suez Canal as a passing container ship looms in the background, in Ismailia, Egypt. EPA
A group relaxes at the bank of the Suez Canal as a passing container ship looms in the background, in Ismailia, Egypt. EPA

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From an aerial view of Yuncong waterfall to an injured protester in Myanmar - today's best pictures

Take a look at some of the best images from around the world in the past 24 hours

The National

May 30, 2021

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More from The National:

From a flexing octopus to the end of a rainbow in Munich - Friday's best pictures

From celebrating Buddha's birthday virtually to Macron in Rwanda - Thursday's best pictures

From a lunar eclipse to the Pope getting a kiss - Wednesday's best pictures

From a monk cleaning a giant Buddha to a gibbon invading a mini city - Tuesday's best pictures

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Kareem Shaheen on Canada
'Munich: The Edge of War'

Director: Christian Schwochow

Starring: George MacKay, Jannis Niewohner, Jeremy Irons

Rating: 3/5

BIOSAFETY LABS SECURITY LEVELS

Biosafety Level 1

The lowest safety level. These labs work with viruses that are minimal risk to humans.

Hand washing is required on entry and exit and potentially infectious material decontaminated with bleach before thrown away.

Must have a lock. Access limited. Lab does not need to be isolated from other buildings.

Used as teaching spaces.

Study microorganisms such as Staphylococcus which causes food poisoning.

Biosafety Level 2

These labs deal with pathogens that can be harmful to people and the environment such as Hepatitis, HIV and salmonella.

Working in Level 2 requires special training in handling pathogenic agents.

Extra safety and security precautions are taken in addition to those at Level 1

Biosafety Level 3

These labs contain material that can be lethal if inhaled. This includes SARS coronavirus, MERS, and yellow fever.

Significant extra precautions are taken with staff given specific immunisations when dealing with certain diseases.

Infectious material is examined in a biological safety cabinet.

Personnel must wear protective gowns that must be discarded or decontaminated after use.

Strict safety and handling procedures are in place. There must be double entrances to the building and they must contain self-closing doors to reduce risk of pathogen aerosols escaping.

Windows must be sealed. Air from must be filtered before it can be recirculated.

Biosafety Level 4

The highest level for biosafety precautions. Scientist work with highly dangerous diseases that have no vaccine or cure.

All material must be decontaminated.

Personnel must wear a positive pressure suit for protection. On leaving the lab this must pass through decontamination shower before they have a personal shower.

Entry is severely restricted to trained and authorised personnel. All entries are recorded.

Entrance must be via airlocks.

'Unrivaled: Why America Will Remain the World’s Sole Superpower'
Michael Beckley, Cornell Press

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