How Asymptomatic Infected Individuals Can Self-Assess
Jan 08, 2021
Source: Cainiu Health
Dr. Jiang Weimin
Introduction
How asymptomatic individuals can self-assess: The definitive methods for diagnosing asymptomatic infection are nucleic acid testing (e.g., RT-PCR) or antigen testing. Self-assessment is straightforward: first, observe whether you exhibit any symptoms of COVID-19 infection; second, recall whether you have had contact with confirmed or suspected COVID-19 patients, or whether you have visited or stayed in areas with high-risk clusters of cases.
SARS-CoV-2 (the novel coronavirus) is a type of virus belonging to the β genus of coronaviruses. It appears round or oval-shaped under electron microscopy, with an outer envelope studded with distinct spike proteins—giving it a crown-like appearance, hence the name “coronavirus.” So, how can asymptomatic individuals self-assess their infection status? Below are answers to this question.
How to Self-Assess for Asymptomatic Infection
The definitive diagnostic method for identifying asymptomatic infection is nucleic acid testing (e.g., RT-PCR). However, in most regions, supplies of nucleic acid test kits are limited. To avoid unnecessary strain on healthcare resources, antigen testing and self-assessment may be used as preliminary screening tools. Self-assessment is straightforward: first, observe whether you exhibit any symptoms associated with COVID-19; second, recall whether you have had contact with confirmed or suspected COVID-19 patients, or whether you have visited areas with high incidence rates or known outbreaks. If any of the following conditions apply, prompt medical evaluation is recommended, as they may indicate possible SARS-CoV-2 infection: onset of fever, with persistent elevated body temperature lasting more than two hours despite monitoring.
Knowledge Extension: Can Asymptomatic Individuals Transmit the Virus?
Yes—individuals who are infected but remain asymptomatic can still transmit the disease. Currently, the primary sources of infection are confirmed cases of SARS-CoV-2 infection; asymptomatic carriers may also serve as infectious sources. The main transmission routes are respiratory droplets and direct or indirect contact. Transmission via aerosols or the gastrointestinal tract remains under investigation. The general population is susceptible. Based on current epidemiological data, the incubation period ranges from 1 to 14 days, most commonly 3–7 days. Typical initial symptoms include fever, fatigue, and dry cough; a minority of patients may experience nasal congestion, rhinorrhea, sore throat, or diarrhea. Severe cases often develop dyspnea and/or hypoxemia approximately one week after symptom onset; critical cases may rapidly progress to acute respiratory distress syndrome (ARDS), septic shock, refractory metabolic acidosis, and coagulopathy.
The above outlines how to perform self-assessment for asymptomatic infection. Always consult a physician before taking any action, and strictly adhere to professional medical advice—do not self-medicate blindly. We hope this information has been helpful to you.
