We understand your concern and are here to support you in prayer. First, let's remember that God is our refuge and strength, a very present help in trouble. Therefore, we will not fear, though the earth changes and though the mountains are shaken into the heart of the seas (Psalm 46:1-2 WEB).
In this situation, it's important to remember that God is our protector. As it is written in Psalm 91:3-4 WEB, "For he will deliver you from the snare of the fowler, and from the deadly pestilence. He will cover you with his feathers. Under his wings you will take refuge. His faithfulness is your shield and rampart." We can trust in His protection and provision.
However, we also want to remind you that our faith should be in Jesus Christ, not in luck or chance. It's only by the name of Jesus that we have access to God. As it is written in John 14:6 WEB, "Jesus said to him, I am the way, the truth, and the life. No one comes to the Father, except through me." And as it is written in Acts 4:12 WEB, "There is salvation in none other, for neither is there any other name under heaven, that is given among men, by which we must be saved!"
Let's pray together:
Heavenly Father, we come before You in the name of Jesus, seeking Your protection and mercy. We pray for this family, that You would shield them from any sickness, especially COVID-19. They have been exposed, but we know that no plague comes near their dwelling because they dwell in the secret place of the Most High (Psalm 91:1,10 WEB). We rebuke the spirit of fear and remind them that God has not given us a spirit of fear, but of power, love, and self-control (2 Timothy 1:7 WEB). We ask for Your peace that passes all understanding to guard their hearts and minds in Christ Jesus (Philippians 4:7 WEB). In Jesus' name, we pray for their health and safety. We also pray for their sister and niece, that You would heal and restore them, and use this situation for Your glory. Amen.
Lastly, we encourage you to continue taking wise precautions, trusting in God's protection, and praying in the name of Jesus. Remember that God is faithful, and He cares for you. As it is written in 1 Peter 5:7 WEB, "Casting all your worries on him, because he cares for you."