How can u transport safelly an infected blood from a rural area to a City Clinic, to be tested ?

This is a story i saw on TV of an African family living in a village. Her husband died of aids and she contracted the aids virus from him, but she worries if her 3 children are infected too. She can not afford to take them to a Clinic in the city to be tested. She would rather take a blood sample from her kids and take it herself to the city for testing. How can she do it ? Is there a way to conserve the virus for the duration of her trip ?
As you know Africa has the highest numbers of HIV in the whole world & lack of health care makes it worse.

the virus is conserved. the virus is at the same time a non living and living thing. but for you the virus dont have life like the bacteria. it can be conserved bcz it dont need any food to survive. for example, if you have a virus particle, and you conserve it for example 10 years, it wont do nothing, but if you put that particle in a cell it will infect it and the cells near the first one and at the end you will have an infection of the whole tissue. and the children of that woman have AIDS bcz when she gave birth them it was in a natural way, not by surgery. if a woman have aids, and she give birth in natural way, her child will have aids.

First she would need to have the training to draw the blood, the sterile needles/syringes to draw it and the vaccutainer tubes to hold the blood. Once in the tubes, the blood could be transported to a lab quite safely in a small padded box or container. The chemical preservative necessary is already present in the tube, nothing would need to be added. But if she can't afford the trip to the city for the testing, how would she afford the trip to take the blood tubes? And how would she afford the materials needed to take the blood in the first place? Labs also don't work for free, and won't accept a blood test unless there is a doctor or clinic associated with it to give the results to. You can't just walk into a laboratory and drop off a tube of blood for testing like you drop off the dry cleaning. If you want to help, she'd be better off with the money required to take the children to a proper clinic for the testing and counseling, if needed.