In conjunction with World Health Day today, Prime Minister Najib Abdul Razak tweeted that the government is concerned and committed about ensuring the well-being of Malaysians and improving healthcare services.

However, his tweet was met with responses calling on him to address the issues raised by former premier Dr Mahathir Mohamad.

One user, Malique Redzuan, even included the link to Mahathir’s blog in his response, stating: "I hope you read this by your own http://chedet.cc/?p=1632  :) thanks."

Nabil Hussein tweeted, " Mohon DS menjawab sikit dekat Tun M tu, amboih jangan senyap je. Penat bekap tau (Please answer Mahathir, don't be silent, your back up would be tired)."

Whereas another user, Muzzammil said, “ Mohon jawab Tun M tu DS. Kesian dia dok tunggu (Please answer Mahathir, poor man has been waiting).”

Najib has remained silent since last Thursday when the former premier poured scorn on his ability to lead Umno and BN in a blog posting.

'Ailing' due to GST

Mahathir had called for an investigation to determine who ordered the murder of Altantuya Shaariibuu, which observers read as implying that Najib had links with the case.

The police, however, had cleared the prime minister in the past and negated the need for a fresh probe.

The former premier also claimed that Umno and BN would be defeated in the next polls if Najib, whom he described as scandal-ridden, continued to lead.

Meanwhile, other users responded to Najib's tweet that the people are ailing because of the goods and services tax (GST), with one stating that their health condition would improve if the prime minister resigns.

In his tweet, Najib noted that the government absorbed 98 percent of the medical cost for Malaysians who sought treatment in government clinics and hospitals.

He also advised Malaysians to practice a healthy lifestyle, which includes proper diet and exercise.

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