Things You Shoud Know About Omicron BA.4 Symptoms

Omicron coronavirus

The Omicron BA.4 subvariant was first discovered in South Africa in early 2022. This subvariant is thought to spread more quickly than previous Omicron subvariants. But so far, there is no indication that the Omicron BA.4 subvariant causes more severe COVID-19 symptoms.

Since first appearing in 2021, the Omicron variant of the Coronavirus has mutated into several subvariants, namely the BA.1, BA.2, and BA.3 subvariants, the latest being the BA.4 and BA.5 subvariants.

Get to know Omicron Subvariant BA.4

The Omicron BA.4 subvariant is known to have a lower disease severity than the previous Omicron subvariants. However, Omicron BA.4 is known to spread more quickly and can escape the immune system’s defences. This puts the BA.4 subvariant at risk for reinfection with COVID-19 at a later date.

Facts about Omicron BA.4 Subvariants

Research on the Omicron BA.4 subvariant still needs to be improved. Researchers do not yet know whether this subvariant can cause a higher spike in COVID-19 cases than the previous Omicron subvariant.

More than 40 countries have reported cases of the Omicron BA.4 subvariant. Patients confirmed positive for the Omicron BA.4 subvariant generally experienced mild or no symptoms at all. This condition is strongly suspected to be related to complete booster vaccinations received by the community.

Following are some of the symptoms of COVID-19:

So far, the symptoms of the Omicron BA.4 subvariant COVID-19 are similar to those of COVID-19 in general.


  • Sore throat
  • Muscle aches or pains
  • Fever
  • Cough
  • Have a cold
  • Nasal congestion
  • Headache

Even though COVID-19, which is caused by the Omicron BA.4 subvariant, has mild symptoms, this disease should not be underestimated. Everyone, especially vulnerable groups, such as children, the elderly, and people with comorbid illnesses, is advised to follow health protocols and get the COVID-19 vaccine.

The ability of COVID-19 Vaccination Against Omicron Subvariant BA.4


Meanwhile, all types of COVID-19 vaccines are considered to be still effective in reducing the severity of the disease and reducing the risk of death from infection with the Omicron BA subvariant Coronavirus.

Research has also shown that getting 3 doses of mRNA vaccine is beneficial in reducing the risk of hospitalization during the Omicron wave.

So, ensure you have received the total and booster doses of the COVID-19 vaccine to protect the body from the severity of the disease if infected with the Coronavirus.

You can also break the chain of transmission of the Omicron BA.4 subvariant by taking the following steps to prevent COVID-19:

  • Wear a mask when doing activities outside the home, primarily if these activities are carried out indoors and attended by many people
  • Wash hands regularly
  • Avoid crowds
  • Maintain physical distance from other people
  • Increase air ventilation in closed spaces
  • Cover mouth and nose with elbow or tissue when coughing and sneezing
  • Clean surfaces that you frequently touch, such as doorknobs, cell phones, laptops or desks, regularly

PCR and antigen tests can still be used to diagnose COVID-19 caused by the Omicron BA subvariant.4. You can do the test if you experience the symptoms of COVID-19, as mentioned above.

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