Can 'The search for an AIDS vaccine currently needs serious help, with the U.S. government, the biggest investor in the effort, spending less than 10 percent of its AIDS-research budget on the problem.' be viewed as neither a logical extension nor a contradiction of 'There has been no past or present search for an AIDS vaccine.'
The search for an AIDS vaccine currently needs serious help, with the U.S. government, the biggest investor in the effort, spending less than 10 percent of its AIDS-research budget on the problem.###There has been no past or present search for an AIDS vaccine.