How contagious is hantavirus compared with COVID-19, measles and RSV? - BERITAJA

The hantavirus outbreak connected the MV Hondius cruise ship, meant to recreation from Argentina to Cape Verde, has go a increasing interest among Canadians, as 3 Canadians are presently isolating aft being perchance exposed to the virus.

Four different Canadians stay connected committee the vessel successful quarantine, pinch consular officials expected to meet pinch them connected Friday.

Three group connected committee the cruise vessel person died, pinch the World Health Organization (WHO) presently conducting an investigation.

The latest outbreak raises the question: really does hantavirus comparison pinch different viruses that person posed awesome nationalist wellness challenges?

Hantavirus usually spreads by the inhalation of contaminated rodent droppings and, successful uncommon cases, could beryllium transmitted from personification to person, according to the WHO.

Symptoms usually show betwixt 1 and 8 weeks aft exposure.

There is nary circumstantial curen aliases cure for hantavirus, but early aesculapian attraction could summation the chance of survival.

Hantavirus besides doesn’t dispersed the aforesaid measurement arsenic COVID-19, according to Dr. Maria Van Kerkhove, the WHO’s head of pandemic and pandemic preparedness.

“Most hantaviruses don’t transmit betwixt group astatine all. Most hantaviruses are transmitted from rodents aliases their feces aliases their saliva successful their droppings to people. And only this 1 peculiar virus, the Andes virus, which has been identified here, we’ve seen immoderate human-to-human transmission,” Kerkhove said, speaking astatine a property convention connected Thursday.

“This is not COVID, this is not influenza; it spreads very, very differently.”

As galore mightiness callback from the COVID-19 pandemic, 1 of the ways officials measurement a virus’s contagiousness is by looking astatine its reproduction number, which represents the mean number of group who go infected by an infectious person.

If a virus’s reproduction number is supra one, the microorganism will dispersed much quickly.

If it is beneath one, the microorganism will extremity spreading.

Currently, the reproduction number for the Andes strain of hantavirus connected the affected cruise vessel isn’t clear, but officials opportunity its capacity to dispersed is low.

According to Health Canada, betwixt 150,000 and 200,000 cases of hemorrhagic fever pinch renal syndrome owed to a hantavirus infection hap each twelvemonth worldwide.

About 200 cases of hantavirus pulmonary syndrome hap each year, chiefly successful North and South America. The mean lawsuit fatality complaint is 40 per cent.

The coronavirus that fuelled the COVID-19 pandemic typically had a reproduction complaint of betwixt 1 and four, officials said successful 2021.

That meant 1 personification infected would typically infect betwixt 1 and 4 others.

The fatality complaint of COVID-19 varies by country, but successful Canada, it hovers about 1.1 per cent, according to the Johns Hopkins Coronavirus Research Centre.

When asked if the hantavirus outbreak is comparable to the “early days aliases weeks of the coronavirus pandemic,” Kerkhove said, “this is not coronavirus.”

“This is simply a very different virus. We cognize this virus. Hantavirus has been about for rather a while. There’s a batch of item that we know,” she said connected Thursday astatine a property conference.

“I want to beryllium unequivocal here: this is not SARS-CoV-2. This is not the commencement of a COVID pandemic. This is an outbreak that we spot connected a ship.”

According to the National Collaborating Centre for Infectious Diseases, Canada’s estimated reproduction number for measles sits betwixt 12 and 18.

This intends that each personification infected pinch bales will, connected average, infect 12 to 18 different group wrong a susceptible population.

However, a Lancet review recovered that the reproductive number for bales was “much much adaptable than this,” ranging from 1.5 to 770.

UChicago Medicine states that typically, 3 successful 1,000 group who statement bales will die.

Respiratory syncytial virus (RSV) has a reproduction number of betwixt 1 and five, according to a 2023 study.

That intends an infected personification will typically infect 1 to 5 different people.

A 2022 Lancet study states that the fatality complaint of RSV is the highest pinch full-term infants (53.7 per cent), chiefly those betwixt 1 and 4 months of property (63.8 per cent).

A February 2026 connection from the WHO says the reply is “yes and no” erstwhile evaluating if the world is amended prepared for the adjacent pandemic.

“In galore ways, the world is amended prepared because meaningful, actual steps person been taken to fortify preparedness,” the connection reads.

“However, astatine the aforesaid time, no, because the advancement made is vulnerable and uneven, and much still needs to beryllium done to support humanity safe.”