1.   A moderately effective vaccine exists against some types of streptococcal pneumonia.

2.   He was right, but before an effective vaccine could be made, previously intractable questions had to be answered.

3.   Hepatitis remains a killer, and although a highly effective vaccine is now available, very few gay men have taken it.

4.   That, if it ever happens, will require effective vaccines, and those are years away.

5.   The component had been genetically engineered to produce a vaccine highly effective against all strains.

6.   Roll on the day someone develops an effective vaccine against malaria.

7.   Although an effective animal vaccine for anthrax exists, scientists are always looking for a better or cheaper veterinary version, Halloran says.

8.   An effective vaccine would be timely since the bacterium has acquired resistance to many antibiotics and one strain is resistant to all but a single antibiotic, vancomycin.

9.   And even if an extraordinarily effective vaccine, akin to the polio vaccine, is developed, it will take decades to eradicate HIV.

10.   And there is no effective vaccine.