Are fever and vomiting signs of a second positive (infection)?

“Testing positive” generally refers to being infected with the novel coronavirus, and fever may indicate elevated body temperature. Whether fever and vomiting are due to a second infection with the novel coronavirus usually requires comprehensive evaluation based on exposure history and accompanying symptoms. It is recommended that patients promptly visit a hospital and follow medical advice for treatment. The analysis is as follows:

1. If the patient has recently been in contact with someone infected with the coronavirus and experiences fever and vomiting, it could be a reinfection with the novel coronavirus.

If the patient has had close contact with an individual infected with the coronavirus and has previously contracted and recovered from the virus, the onset of fever and vomiting might indicate a reinfection. Besides fever and vomiting, the patient may also experience symptoms such as dry cough, fatigue, and loss of smell or taste. It is recommended that patients, under a doctor’s guidance, use medications such as Lianhua Qingwen capsules, Yin Qiao Jie Du pills, or antiviral oral liquid to help alleviate symptoms.

2. If the patient has not been exposed to anyone infected with the coronavirus, fever and vomiting are generally not due to a second coronavirus infection.

In cases where there has been no known exposure to infected individuals, fever and vomiting are unlikely to result from a reinfection. If the patient has a recent history of unhygienic food consumption and experiences abdominal pain alongside these symptoms, the cause may instead be acute gastroenteritis. In such cases, patients should, as advised by a physician, use medications such as montmorillonite powder, compound berberine tablets, or Bifidobacterium quadruple live bacteria tablets to aid recovery.

In daily life, it is advisable for individuals to strengthen personal protection, avoid gatherings, and maintain good hygiene practices to reduce the risk of infection.