Infection with SARS-CoV-2, the virus that causes COVID-19, has presented a series of specific symptoms that differentiate it from other diseases such as the flu or colds. However, there are certain indications that patients presented during the first wave that are not as well recognized during this second wave.
The World Health Organization (WHO) states that the main and most recognized symptoms of the coronavirus are a dry cough, fever and fatigue. In addition, other institutions such as the Ministry of Health add the feeling of shortness of breath or trouble breathing.
Body pain, headache or throat pain, diarrhea, conjunctivitis, discoloration of the fingers, anosmia or ageusia are other “less frequent and milder” symptoms., according to WHO itself.
The Ministry of Health, in a document published on October 2, adds to the main symptoms that manifest the disease chills, sore throat, general weakness and vomiting, although they would only occur in “some cases”. On the other hand, the Carlos III Health Institute rejects that sneezing or snot can be related to COVID-19.
Statistics and change of symptoms
The technical report of Public Health of the Ministry of Health explains, as of November 12, which are the most common symptoms among the almost 60,000 cases analyzed. The main ones are fever (87.9%), dry cough (67.7%), physical fatigue (38.1%) and expectoration (33.4%). On the other hand, the least common are diarrhea (3.7%), hemoptysis (0.9%) and conjunctival congestion (0.8%).
In line with the above, there are symptoms related to the skin that in the first wave were linked to the coronavirus that, according to the Spanish Academy of Dermatology and Venereology (AEDV), they are not showing up in this second wave.
Possible dermatological symptoms aside, during the second massive increase in infections in the world, scientists have turned the spotlight on the appearance of neurological, ophthalmological or hematological problems, among others.
Studies in Wuhan
According to a study carried out in Wuhan, the first place in the world where infections by the new coronavirus were detected, 36% of the 214 patients analyzed had neurological problems as a consequence of the infection. Another investigation in the Chinese city, this time with 534 patients, detected ophthalmological symptoms as a consequence of the disease. 20.9% of the patients studied had dry eyes and 12.7% saw blurred.
In addition to the above, the latest report from the Ministry of Health also includes the existence of otorhinolaryngologist symptoms, such as nasal obstruction or loss of taste and smell; and of hematological symptoms, since it would increase the probability of suffering thromboembolism, cerebral infarcts or sudden death.