The thought of waking up with no symptoms and being on the verge of death by the end of the day is a terrifying reality. By now we should all know that an unhealthy lifestyle — poor diet, physical inactivity, etc. — can lead to various health issues, including heart disease, obesity, and cancer. These chronic diseases could end up taking your life one day, but a disease that kills you within 24 hours of contracting it will send shivers up even the healthiest person’s spine.

From the Black Death back in 14th century Europe to the recent Ebola epidemic in West Africa, we know all too well how much devastation an infection can cause. Death comes almost as a welcomed reprieve after a quick and severe attack on the body by way of flesh-eating bacteria, parasitic heart attacks, and deadly diarrhea. Without further ado, let’s count down Alltime 10’s top 10 diseases that will kill you in a day:

10. Dengue Fever

9. Ebola

8. Bubonic Plague

7. Enterovirus D68

6. Cholera

5. MRSA

4. Cerebrovascular Disease

3. Chagas Disease

2. Meningococcal Disease

1. Necrotizing Fasciitis