The possible symptoms that may appear are as follows, although not all patients experience them: - Fever or chills - Cough - Shortness of breath or difficulty breathing - Fatigue - Muscle or body aches - Headache - Loss of taste - Sore throat - Stuffy or runny nose - Nausea or vomiting - Diarrhea It is also known that this Omicron variant has a characteristic feature, which is that the patient's tongue appears whiter than usual.

Covid JN.1, according to the Centers for Disease Control and Prevention (CDC) of the United States, is the main focus of global health research and monitoring. As quoted from HaloDoc, this has been done since it was first detected in the United States in September 2023.

Before the emergence of variant JN.1, scientists identified variant BA.2.86 in August 2023. They found that this variant appeared to be significantly different from other newly identified variants. This naturally raises concerns that this variant may be more likely to spread and infect humans, even in individuals who have immunity to vaccines and previous infections.