A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

Couples wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

Couples, some with masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A bride wearing a mask to prevent a new coronavirus attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020. Image for illustrative purposes.

Couples wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, leaves after a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

Couples wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

Grooms wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A bride wearing a mask for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A groom wearing a mask for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A bride wearing a mask for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A bride wearing a mask to prevent a new coronavirus attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A couple wearing masks for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

Couples wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

A bride wearing a mask for protection from the new coronavirus, attends a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.

Couples wearing masks for protection from the new coronavirus, attend a mass wedding ceremony of the Unification Church at Cheongshim Peace World Centre in Gapyeong, South Korea, February 7, 2020.