Headache as COVID-19 symptom could indicate milder disease, study finds

Though primarily a respiratory disease, the coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), can lead to a variety of symptoms.

The hallmark symptoms of the illness include cough, fever, and difficulty of breathing. However, some people develop other symptoms such as headaches, body pain, diarrhea, loss of smell, and taste, among others.

Researchers at the Hospital Universitario de La Princes in Madrid, Spain, found that patients with COVID-19 who developed headaches as an early symptom of infection had a milder illness and less risk of death.
Headache and COVID-19
Headache is a common symptom in people infected with SARS-CoV-2, with a prevalence ranging between 13 percent and 74.6 percent. Past studies have also noted that headache usually happens early throughout the illness, and has been tied to a loss of smell and taste.

Further, it has been revealed that SARS-CoV-2 has a neuroinvasive potential. In a few patients, SARS-CoV-2 has been detected in the cerebrospinal fluid, a clear, colorless body fluid found in the brain and spinal cord.
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