Something as small as your pinky fingernail can transmit some of the deadliest diseases in the world. Vectors are living organisms that can spread infectious diseases from humans to humans or from animals to humans. The most common vectors are mosquitos and ticks, and the most common vector-borne diseases are malaria, dengue, lyme disease, and zika. Vectors are responsible for over seven- hundred thousand people a year, including over 500,000 children under five years old. This makes them the most deadly species in the world; even more harmful than humans. The reason why this is becoming a more prevalent issue is a result of climate change, urbanization, and travel. Essentially humans are a huge factor in increasing vector-borne diseases. There are very few cures and effective vaccinations in place for the issue. It is essential that humans identify the risk and start striving for change. Welcome to a paper dedicated to the upcoming world issue of vector-borne diseases.