How will this mother pay for her children's health care?

Father of 4 children, doing pretty well for himself, making over $70,000 per year abandons homemaker wife and 4 children 10, 8, 5 and 3 years old. She has been a homemaker all throughout the marriage. She has gets a job at making $15,000 per year but does not get health insurance from employer and really cannot afford to buy insurance on her own. Meanwhile her husband has disappeared and is paying no child support. When the 4 children get sick, and when the mother gets sick, or if they want to have preventative routine healthcare and dental care, how will they get medical care....in your vision of how american health care. Before you answer, please take into consideration that the 5 people in question, the mom and the 4 children did nothing wrong, and are actually victims, just like many other americans have not necessarily done anything wrong when their employers lay them off or other calamities occur.
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I was laid off from my job a few years ago and my wife made about $25,000 at her job. We had 4 children to feed, along with house payments, car payments (so she could get to work and I could go looking for work), and so on. We applied for, and got accepted to, Minnesota's U-Care program (the state's Medicaid program). We also received WIC to buy milk, cheese, cereal, etc. Edit: There are programs available. They are administered by the states, and the mother would need to contact her state's Human Services Department (or whatever it is called in that state) to get information on how to get coverage. And yes, they do cover routine doctor visits, preventive care, and dental. In fact, it was better than the current insurance I now have through my employer.
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