आइजिएम एन्टिबदिसखौ होबथानायाव एबा हमदांनाया आनजादाव दंफायो जाय आखुथाया जायगा लानायनि गिबि सप्टानि उनाव नुजाथियो आरो गोब्राब जानायनि उनाव दानसेनिफ्राय दान्थामसिम होबथाजायो ।
The tests include detection of IgM antibodies which appear after the first week of onset of symptoms and are detectable for one to three months after the acute episode .