KUALA LUMPUR, July 17 (Bernama): The ringgit is expected to trade at current levels this week and is poised to reach the 4.30 level against the US dollar should risk-on sentiment hold and oil prices continue to decline, according to a trader. The lack of local positive catalysts coupled with the high number of Covid-19 cases would dampen investors’ confidence and they may adopt a wait-and-see approach, the trader explained. On Friday, the Ministry of Health reported that new Covid-19 cases declined to 12,541 compared with 13,215 infections the day before, bringing the cumulative number of domestic cases to 893,323. Meanwhile, Malaysian Industrial Development Finance Bhd research economist Abdul Mui'zz Norhalim said the ringgit is expected to be influenced by growth concerns as the market is expected to continue focussing on the Covid-19 situation in Malaysia.