That means it would take 1,351,351.35 years, using data from the (thus far) fastest manned spacecraft. As others have touched on, proposed spacecraft can travel faster. exobio says. I think Project Orion (nuclear powered spaceships) can hit up to 10% of the speed of light so that means 500 years, I think.
Medicine and Healthcare. Adults should be vaccinated with the TDaP vaccine (for tetanus, pertussis and diphtheria) every 10 years, maybe less (it is not going to be harmful to vaccinate more frequently). For diseases like whooping cough (also called pertussis), the danger to adults may be as serious as it is to children.
1 Once an adult gets the Tdap vaccine, he or she should get the Td (tetanus and diphtheria) booster every 10 years from then on. 2  In adults, whooping cough usually starts like a common cold but then the coughing gets worse and can last for weeks or even months. Adults age 65 years and older need a one-time whooping cough booster if they will have close contact with infants younger than 12 months. 2  If not already vaccinated, pregnant women should receive the booster vaccine late in the second trimester or during the third trimester, during each pregnancy.