KUALA LUMPUR: A virologist has suggested increasing health screenings for symptomatic travellers at entry points following the human metapneumovirus (hMPV) outbreak in China.
Monash University molecular virologist Associate Professor Dr Vinod Balasubramaniam said the focus should be on testing for fever and respiratory symptoms.
"The authorities should isolate travellers showing signs of severe illness for further testing.
"This could be Covid-19, influenza or other known pathogens (that have a risk of spreading)," he told the New Straits Times.
Vinod said China was experiencing seasonal respiratory illness spikes, including hMPV and other respiratory viruses like respiratory syncytial virus (RSV) and influenza.
However, he said there was no evidence to suggest these illnesses pose a global pandemic threat like Covid-19.
"Chinese authorities have said these respiratory illnesses are seasonal norms, with fewer severe cases compared with prior years."
Vinod said while hMPV, Covid-19 and influenza were all respiratory viruses, they differed significantly in terms of severity and transmission.
Unlike Covid-19, hMPV did not spread asymptomatically as extensively and its severity was manageable in healthy populations, he added.
Vinod said hMPV generally caused mild to moderate respiratory illness, but in high-risk groups, it could lead to severe conditions like bronchiolitis or pneumonia.
"Covid-19 and influenza can also range from mild to severe, with Covid-19 having a higher potential for severe complications and mortality, especially in older adults and those with underlying health conditions.
"All three viruses spread through respiratory droplets, direct contact and contact with contaminated surfaces.
"Covid-19 has shown a higher transmissibility compared with hMPV and influenza, partly due to asymptomatic transmission and a longer incubation period."
To reduce the risk of hMPV infection, he advised people to wash their hands regularly and avoid touching their face with unwashed hands.
He recommended cleaning and disinfecting frequently touched objects and surfaces, as well as avoiding close contact with others when experiencing respiratory symptoms.
He said it was important to boost public awareness about hMPV, including its symptoms, transmission methods and preventive measures.
"Support public health efforts in monitoring respiratory infections to detect and respond to outbreaks promptly.
"Ensure healthcare facilities are prepared to manage an increase in respiratory infections, including having adequate supplies and protocols in place."