COVID-19 is extremely contagious and spreads mainly through respiratory droplets from infected people. When an infected person coughs, sneezes, or just talks, these droplets are spread through the surrounding air and can land on others or be inhaled by others. The closer and longer you are interacting with an infected person, the more likely it is that you will become infected. Infectious droplets can also land on surfaces touched by other people who then can contract the virus by then touching their eyes, nose, or mouth.
There is no evidence that COVID-19 is spread by ticks or mosquitoes, and the risk of transmission to and from animals is low. Similarly, there is no evidence that you can contract the virus from drinking water and little risk in contracting the virus from eating food or handling its packaging.