世界衛生組織（World Health Organization）近日就新型冠狀病毒感染肺炎疫情發佈最新問答，其中就如何正確佩戴口罩發佈了專家意見。
世衛組織指出，佩戴口罩可以幫助預防某些呼吸系統疾病的傳播，但在有些情況下佩戴口罩也容易使人產生某種“虛假的安全感”，導致人們可能忽略其他同等重要的基本防護措施。
世衛組織同時提醒說，必須確保口罩的正確使用和處置，以保證其有效並避免因不正確使用和處置口罩而增加病毒傳播風險。
戴口罩究竟能否預防新冠病毒感染？
正確佩戴與丟棄口罩的方式是什麼？
WHO專家現場教學演示如何佩戴口罩，並著重強調：口罩並非萬能，需與手部清潔等預防措施配合落實！
不過，WHO稱健康人士不必戴口罩，這似乎更適用於疫情並不嚴重的其他國家。
對於像中國這樣人口眾多的疫情感染區而言，人們往往很難在公眾場合辨識出感染疫情者，而無症狀感染者本身或許也並不知情。因此，健康人士戴口罩做好防備似乎無可厚非。
佩戴口罩能否預防新冠病毒感染？
Medical masks like this one cannot protect against the new Coronavirus when used alone. When you wear them, you must combine with hand hygiene and other preventive measures. WHO only recommends the use of masks in specific cases.
僅佩戴此類口罩並不足以預防新冠病毒感染。佩戴口罩之餘，還須配合包括手部清潔等其他疫情防護控制措施。世衛組織建議，須在特定情況下佩戴口罩。
If you have cough, fever and difficulty breathing, you should wear a mask and seek medical care. If you do not have these symptoms, you do not have to wear masks, because there is no evidence that they protect people who are not sick. However, if you are healthy but you are taking care of a person who may be infected with the new Coronavirus, then you should wear a mask whenever you are in the same room with that person.
凡發燒、咳嗽、或呼吸困難者，應佩戴醫用口罩，並尋求醫助。若無以上這些病徵，可不用佩戴醫用口罩。無現時證據顯示口罩有助於保護健康人士。但如果你是需要照顧疑似患者的健康人士，每當與疑似病例同處一室時，都需要佩戴口罩。
And remember, if you choose to wear a mask, use it and discard it properly and clean your hands with alcohol, hand rub or soap and water.
請記住，若選擇佩戴口罩，須確保口罩的正確使用和丟棄，且用酒精、洗手液或肥皂與清水洗手。
What is the correct way to wear and dispose of masks?
正確佩戴與丟棄口罩的方式是什麼？
If you decide to wear a medical mask, which is pleated and flat like this one, it is important to wear and discard it correctly. Otherwise, instead of protecting you, the mask becomes a source of infection because of the germs that may stay on it.
若選擇佩戴醫用口罩，即此類有褶皺的平面口罩，如何正確使用和丟棄十分重要。口罩誤用，非但無法保護自己，反而會增加病毒傳播風險，因為病菌可能會黏附於口罩上。
To wear it correctly, you should locate the metal strip at the top of the mask, place over your nose bridge, secure the elastics around your ears, or tie the strings behild your head. Make sure it covers your nose, mouth and chin.
正確佩戴口罩，首先要確認金屬條的那端位於口罩上方，按壓使其緊貼鼻樑，用綁帶套住耳朵，或將兩條線繩在腦後繫緊，要確保口罩完全覆蓋鼻子、嘴巴和下巴。
While in use, do not touch the front of your mask. To remove the mask, take the elastics from around your ears, or untie the strings behind your head. Do not touch the front of the mask as it may be contaminated.
佩戴口罩時，要避免用手觸碰外罩汙染面。取下口罩時，摘除掛耳繩或解綁腦後的繫繩，不可用手觸碰口罩外側，因口罩外部可能已沾染病菌。
Remove the mask and discard in a closed bin. Cleanse your hands with alcohol, hand rub or soap and water. Hand hygiene should be done if you accidentally touch the front of your mask while wearing it.
取下口罩後，應立即丟棄在帶蓋的垃圾箱中，並用酒精、洗手液或肥皂與清水洗手。佩戴口罩時，若不小心觸碰了口罩面，須立即清潔手部。
If your mask becomes damp or humid, replace it with a new dry mask. Never reuse single use masks and discard them immediately into closed bins after each use.
