What are the side effects of the yellow fever vaccine?
May 17, 2022
Source: Cainiu Health
Dr. Jiang Weimin
Introduction
During the vaccine manufacturing stage, vaccine quality—and consequently the magnitude of adverse reactions—varies among different manufacturers and production technologies. Adverse reactions following purified or inactivated vaccines are typically minimal. Most recipients experience no other reactions after vaccination; however, a small number of individuals may develop mild redness at the injection site or low-grade fever. These mild symptoms usually resolve spontaneously on the same day and do not warrant excessive concern.
Yellow fever is a disease currently prevalent in society. Individuals infected with yellow fever may experience significant adverse effects on their daily life and physical health. Prevention of yellow fever is achieved through vaccination—the yellow fever vaccine. So, what are the potential side effects of the yellow fever vaccine?
What Are the Side Effects of the Yellow Fever Vaccine?
During vaccine manufacturing, quality varies among different manufacturers and production technologies, resulting in differing frequencies and severities of adverse reactions. Purified and inactivated vaccines generally cause only mild adverse reactions. Most recipients experience no reaction following vaccination; however, a small number may develop mild local redness or low-grade fever. These minor symptoms typically resolve spontaneously on the same day and require no special concern. Certain individuals must avoid receiving this vaccine, including those with active fever, patients with severe chronic conditions affecting the heart, liver, or kidneys, individuals with egg allergy, and pregnant women. Mild fever may occur post-vaccination but is usually transient and insignificant. This vaccine is primarily used for the prevention and control of yellow fever, especially among individuals traveling to or working in yellow fever-endemic regions.
Currently, there is no specific antiviral treatment for yellow fever; management is primarily supportive and symptomatic. Humans are universally susceptible to the yellow fever virus. The incubation period is typically 3–6 days. Blood drawn from patients shortly before the onset of fever and during days 3–5 after symptom onset is infectious to mosquitoes. Therefore, individuals should pay close attention to personal protective measures to prevent infections caused by fungi or bacteria, which could otherwise lead to various illnesses and adversely affect both physical health and daily life.
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