The Guardian doesn't think this is the end:

Really don't see how it would be the end for LP. In a year, more likely 2 years or more when there is a vaccin and most countries have had their vaccination programs and lifted their measures things will return to 'normal'. Obviously, things will have changed as it always does, but people will travel and, though hard to predict how fast, that recovery might go a lot faster than some expect. I mean even now authorities have issues preventing people (admittedly small minority) to travel. I'm certainly looking 'beyond' this to see what is possible and considering what to prioritize to see before overcrowded destinations return to their 'natural' over tourism status.

In the mean time LP can cut down on costs enormously, almost go into hibernation if needed, and by the time things recover old guides will be sold, creating income for upscaling the new research needed to update the guide books. Though it will be tough, certainly for the workers losing their jobs, LP as a business shouldn't have too much trouble emerging at the other end alive and kicking provided they have decent management.

Hi, it might be possible to find TB vaccination in Bangkok or Patayya after entering into Thailand. Or Singapore may be another option.

Thanks for the idea. I'll try and find out more about the procedure as some places have told me you need a test first and the results of that test determine if you have a vaccination.

BTW, I saw your website and it shows "Permission denied" when clicking any menu of your travel.

Where are you based. Unfortunately some (large) countries are blocked en-mass due the continuous ongoing hack attempts (even though blocked they still flood the logs). I wish that was not the case but more specific blocks to protect it being "taken over" became impractical. But depends on where you are browsing from. And although it's no real answer I can whitelist some IP addresses.

nutrax is right.
i'm an Australian citizen. many years ago I had the yellow fever vaccination, but no longer have the card.
just a few years back I was on parts of the 'gringo trail' in peru, Bolivia, chile where yellow fever isn't a problem.
re-entering Australia, I was asked if I had yellow fever vac card, I said no, and that was the end of the matter.

An epidemiologist from NZ (now a professor at the University of Adelaide) was interviewed t length this morning. He basically outlined the three options that have been discussed on here at length, available for Australia:

1. Eliminate the virus - this is the New Zealand strategy, with a total lock-down and a ban on all inbound travel - obviously this strategy works best if you're an isolated South Pacific island;
2. Containment - this is the current approach in Australia, with relatively few cases, and a "modest" rate of increase - in other words we're not on the hockey-stick curve - and we lock down as we currently are for a very long time, waiting for a cure or a vaccine;
3. Mitigation - protect the vulnerable, but otherwise lift most socially awful and economy-wrecking restrictions, and let the virus spread as it will, and then (it should) slow down eventually, even prior to a vaccine.

Although pushed by the interviewer, the good professor would not offer a view on which path he prefers ... he said they were the choices. But I got the sense that option (3) "let her rip, look after the oldies" was what he thought would have the least destructive long-term effect.

He conceded that staying with option (2) for a long time has the problems you cite ninja. Although in Australia the government is paying people to not work, and paying companies to not produce, so a lot of pain is at least mitigated.

With Japanese Encephalitis there is about 2 cases per 100,000 population a year and about a quarter of them die. You are not going to the parts of Asia with particularly high rates and it is an expensive vaccine so I would agree with the nurse you consulted. Cholera used to have an international vaccination certificate (like yellow fever and smallpox) but it was done away with, the vaccine is not 100% effective, the risk particularly for an adult is not huge and treatment is effective so I would also agree with the nurse you consulted.

Costs will be higher in future and other aspects of travel will change

I don't think we can really say that with any certainty yet. OP doesn't even say when this trip will go ahead, by this time next year we could have a vaccine.

OP look on hostel world for costs of a bed in a hostel. You can live off ramen for a couple of euros per day. Not that I would advise this, as others implied the food is part of the experience. Then around 5 euros per day to cover local transport. So maybe you could scrape by purely surviving. I tend to agree with others that it is too low for enjoyable budget travel.

Last time I got a yellow fever vaccine (it used to be said to last only 10 years), my health insurance paid for it. I don't know how the clinic managed that, but they did. Worth looking into, I'd say.

Yellow fever is still out there, including intermittently in East Africa and, notably, Brazil. There are vaccine shortages, so last-minute decision making doesn't necessarily pay off. There are countries which require the vaccination from everyone, countries which don't care and never will, and countries which periodically go into a tizzy and start checking arrivals and turning people back (or insisting on vaccinations on the spot, which is not my idea of a good time).

YMMV, but I hope that's helpful.

Mark

Update: I decided not to get the YF vaccination. HOwever, I am now not looking forward to Malarone! lol

Where exactly are you going to east Africa?
I travelled a year ago to Mozambique via Addis Abeba and got YF vaccine (mandatory) at the airport in Maputo. Paid US$ 50. Mozambique isn't considered YF affected area, but Ethiopia is.