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.
If you are age 60 years or older, you should get a 1-time dose of this vaccine now. Tetanus, Diphtheria, Pertussis (whooping cough). All adults who have not yet received a dose of Tdap, as an adolescent or adult, need to get Tdap vaccine (the adult whooping cough vaccine). Pregnant women need a dose in every pregnancy. After that, you will need a Td booster dose every 10 years.