How many poison kill a person in 7 days?

The number of poisons that can potentially kill a person in 7 days varies widely depending on factors such as the type and dosage of the poison, the individual's health, and the method of exposure. Some poisons can be lethal in very small amounts within hours, while others may take longer to cause fatal effects. Therefore, it's not possible to specify a set number of poisons that could kill a person in that timeframe without considering these variables. Always seek immediate medical attention if poisoning is suspected.