Australian family with 2 sons, one critically ill

Hello, I am urgently seeking an experienced helper on behalf of a dear friend’s family.

Family Structure: Australian mother and South African father

Two sons: a 7-year-old and a 4-year-old

*The 4-year-old boy is currently going throgh an critical illness, and the family is urgently looking for a helper who can start immediately. The ideal candidate should meet the following requirements: 

• Flexible Cook: Able to prepare meals that meet the dietary requirements of the 4-year-old, who will have a compromised immune system.
• Skilled Housekeeper: Capable of maintaining a very clean household environment. 
• Childcare Experience: Competent in caring for children, including the very sick 4-year-old.