Health director-general Dr Noor Hisham Abdullah said they are the Kasir cluster in Sabah; Sri Jujur cluster in Selangor; Oad cluster involving Negeri Sembilan and Selangor; Enggor cluster in Perak; and Makmur cluster in Johor.

On the Kasir cluster, Noor Hisham said it was first detected in Tawau, Sabah, after a supermarket worker went for a screening on Nov 8.

There were a total of 28 positive cases, from the 143 people screened up to Nov 20.

The Sri Jujur cluster involved the districts of Klang, Sepang and Petaling in Selangor. The index case tested positive during a workplace screening on Nov 8.

A total of 273 people have been screened, with 41 positive cases. This workplace cluster currently involves five Malaysians and 36 foreigners.

The Oad cluster involves the Seremban, Jelebu, Kuala Pilah, and Jempol districts in Negeri Sembilan and the Hulu Langat district in Selangor. The index case was screened on Nov 10 after exhibiting symptoms.

As at today, 73 people had been screened and 11 people have tested positive.

Meanwhile, the Enggor cluster involving the districts of Kerian, Kuala Kangsar, Batang Padang and Kinta in Perak was first detected when an individual was screened after showing symptoms on Nov 13.

So far, 280 people have been screened, with 12 positive cases.

On the Makmur cluster, Noor Hisham said it was first detected in Kulai and Johor Bahru after an individual was screened on Nov 19 after showing symptoms.

There were six positive cases from the 68 people screened until Nov 20.

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