@Ocean,

that's why the YF vaccination is required when arriving from affected areas. You cannot get YF inside Asia, but Asia could get YF from someone arriving from outside.

@Ocean, I think you should speak to a proper health care professional.

Lariam was a popular malaria prevention some twenty years ago when the side-effects were much less studied. It is not something they would give you in the UK anymore for prevention.

There are anti-malarial regimes with much less side-effects than Lariam.

Why would you need a Yellow Fever vaccination? Yellow Fever "has never been reported in Asia" says the WHO who should know (www.who.int/mediacentre/factsheets/fs100/en/ ).

Proof of YF vaccination is required if arriving from an affected area, such as Latin America or Africa, but not from China.

I do not know anything about the Mouding event, but Yimen 易门 holds its annual Wild Mushroom Trade Fair 野生菌交易会 from July 20-26.

As far as I know, the event in Shiping county is in Longpeng 龙朋 township.

The mushroom houses you have seen are most likely the ones close to Nanhua 南华, the bus from Dali does not pass anywhere near Mouding 牟定.

With the lotus in bloom July until August should be prime time for Puzhehei. But having been recently to Shiping where the nearby Yilong lake is also famous for its lotus flower, the lake there is almost totally dry and the lotus boats are all moored. Not sure what the water situation is in Puzhehei. Puzhehei gets busiest over the torch festival, August 11 this year.
Yuanyang is also quite nice in summer, but you are unlikely to get great views of the terraces as the weather tends to be extremely hazy and of course rice is growing in the terraces. All the most spectacular photos with the fog swirling with the rising sun reflecting in the terraces have been taken in winter. Few photographers this time of the year.