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What was the mystery about the polio virus that had to be solved before a vaccine could be developed?
This question seems to be from a unit about Henrietta Lacks' cells.
There are many polio viruses that have no effect on humans. Her cells (HeLa) allowed the growth of polio viruses and made it possible to determine which strain produced the devastating effects. When that was determined, the vaccine could be made.
Vaccines are not limited to viruses. Some of the bacterial diseases for which there are vaccines include: tuberculosis, meningitis, tetanus, whooping cough, typhoid, cholera, anthrax, etc.
What else can I help you with?
Who solved the mystery of The Five Orange Pips?
Sherlock Holmes solved the mystery.
In the Glasgow mystery where is the mystery solved?
in the mansion
How the mystery of three headed dog was solved?
they never solved it
How you solved the mystery?
You follow the clues.
What actors and actresses appeared in The Handcuff Mystery Solved - 1905?
The cast of The Handcuff Mystery Solved - 1905 includes: The Two Cirnocs
Do all mystery novels end in a mystery?
Sometimes authors don't end the novel with the mystery being solved to use as a cliffhanger for a sequel. but most of the time the mystery is solved at the end of the story, such as CLUE
What are the release dates for Animal Precinct - 2001 Mystery Solved?
Animal Precinct - 2001 Mystery Solved was released on: USA: 11 January 2011
When was the Romanov mystery solved?
It still has not been answered.
How was the mystery of the whale tattoo solved?
nobody cares
Who solved the mystery of yellow fever?
walter reed
Who is the narrator for titanic mystery solved on History Channel?
Johnathan frakes
Why is stamford raffles statue black?
It's a mystery that was never solved...
