Jane Chambers

Puerto Sanchez is 220 kilometres down south, which sounds relatively near, but takes more than four hours.

You need to drive down the Carretera Austral.

This is Chile's 1,239-kilometre-long highway, which winds through Chile and Patagonia.

It's often unpaved and bumpy.

Once you get to Lake General Carela, you turn off to 24 more kilometres of an even worse, sometimes single-track road, which takes you up hairpin bends and isn't for the faint-hearted.

But the spectacular view of the lake is worth it.

Despite this long and treacherous journey, Hasenia is determined to keep prices as low as she can for her customers.

I've walked across the village to La Posta, which is what the Community Health Centre is known as.

It's a clean, tiny building with a reception area and a couple of rooms leading off.

The heating's turned up high.

Even though it's summer, temperatures can hover at around zero Celsius at night and drift between nine and 16 Celsius during the day.

I'm lucky it's not raining.

And what kind of medicine do you have here and where does it come from?

Ariel tells me that medical supplies are more expensive and as a resident they're always looking for ways to get the daily necessities they need.

Snow and ice are frequent in the winter months.

As we drive along, I see numerous road signs telling drivers to use snow chains on their tyres and warning about rocks falling onto the road from the mountains.

Last mile logistics is especially critical for medicine, where delays can directly affect whether things like vaccines, insulin and some antibiotics are safe to use because they need to be kept at a narrow temperature range, often 2 to 8 degrees Celsius.

If the temperature rises for too long, they can become ineffective or unsafe to use.

Temperature control for things like medicine and food is often referred to as the cold chain.

Back in Chile's capital, Santiago, I'm off to the offices of a logistics technology company called TransCity to meet the co-founder and chief commercial officer, Gonzalo Fuenzalida.