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LOS ANGELES, CALIFORNIA - JULY 25: Ashton Kutcher attends the Los Angeles Premiere of "Vengeance" at Ace Hotel on July 25, 2022 in Los Angeles, California. Robin L Marshall/Getty Images/AFP (Photo by Robin L Marshall / GETTY IMAGES NORTH AMERICA / Getty Images via AFP)

The government's buffer stock was managed by Pharmaniaga Bhd and would be given to private clinics and hospitals facing a shortage. Illustration photo: 123RF

Typhoid injection vaccines can be given intramuscularly to adults and children two years old and above with the dose of 0.5 ml as a single dose or once every three years for people at risk. (123rf)

Australian National University (ANU) - Photo: 123rf

Most of those who were re-infected during that period only experienced mild symptoms and only needed isolation.

MMA president Dr Koh Kar Chai said that while symptoms of Covid-19 with the Omicron variant are mostly mild, it is not always the case, what more if a person's natural immune system is weak. - Bernama Photo

A team of researchers from the US Centers for Disease Control and Prevention (CDC), led by Dr Sharon Saydah, found children below the age of 18, recovered from Covid are likely to develop diabetes than those with no history of the viral infection.

Dr James Koh says booster dose is highly recommended as shown in various research.

According to the Eurosurveillance journal, there are eight main symptoms of Omicron, namely cough, runny nose, fatigue, sore throat, headache, muscle aches including fever and sneezing.