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25 Apr 2020
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Join Date: Apr 2019
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Quote:
Originally Posted by markharf
The hope of a durable immunity is not totally without support. Many viruses can give you long-term immunity, whether by contracting the disease itself or by vaccination--smallpox, measles, yellow fever, mumps, polio, etc. etc. etc.
It's my understanding that the same goes for the influenza virus except that it mutates readily, and immunity to an earlier mutation doesn't necessarily imply immunity to a more recent one. It's also my understanding that this particular new coronavirus is believed to be far less prone to mutation than the influenza virus. Note that word "believed." If true, long-term immunity would be a reasonable prediction.
Common understanding is that the common cold is caused by at least a couple of hundred different known viruses--including some coronaviruses, many rhinoviruses, and a bunch of others--plus a large number of unknown viruses. You'd have to catch each one before you'd have any chance of lasting immunity to colds. .
Mark
Mark
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This is yet to be seen. For example norovirus causing stomach flu does not build long term immunity and herpes virus causing sore lips never goes away at least in some individuals.. papillomavirus is another example. We had several felines die from feline corona virus FCoV and we're told that it may never goes away and we shouldn't have new cats because they can get infected from survivers.
There are hundred+ people in Korea, Japan and China who after being negative and declared "cured" several weeks later tested positive again for covid19. Will surviving covid19 result in long term immunity? Will survivers be carriers after? Those are questions which need to be answered for sure.
Last edited by cyclopathic; 25 Apr 2020 at 21:51.
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Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...
2020 Edition of Chris Scott's Adventure Motorcycling Handbook.
"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.
Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers and travel is covered on motorcycles of all sizes.
(ONLY US RESIDENTS and currently has a limit of 60 days.)
Ripcord Evacuation Insurance is available for ALL nationalities.
What others say about HU...
"This site is the BIBLE for international bike travelers." Greg, Australia
"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK
"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia
"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA
"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada
"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa
"This is the answer to all my questions." Haydn, Australia
"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany
Lots more comments here!

Every book a diary
Every chapter a day
Every day a journey
Refreshingly honest and compelling tales: the hights and lows of a life on the road. Solo, unsupported, budget journeys of discovery.
Authentic, engaging and evocative travel memoirs, overland, around the world and through life.
All 8 books available from the author or as eBooks and audio books
Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!
New to Horizons Unlimited?
New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!
Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80G/S.
Read more about Grant & Susan's story
Membership - help keep us going!
Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events all over the world with the help of volunteers; we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.
You don't have to be a Member to come to an HU meeting, access the website, or ask questions on the HUBB. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.
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