Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Please add additional information to this article.

### Input:
The World Health Organization has warned of a potential second wave of coronavirus cases if countries do not continue to take preventive measures.

### Response:
The WHO has emphasized the need for continued social distancing measures to reduce the chance of a second wave of cases, such as wearing face masks when in public, physical distancing, avoiding large gatherings, and frequent hand-washing. Additionally, the organization is encouraging countries to increase testing capacity in order to detect any new cases quickly and enact targeted lockdowns when needed.